Summary
| Type | pCO2 |
|---|---|
| Vendor | Apollo Scitech |
| Model | Apollo SciTech AS-P3 combined pCO2 analyser and underway system |
| S/N | 2101-OSU |
| CORIOLIX ID | pcotwo002101 |
| Inventory ID | |
| Data ID | |
| Class | Flowthrough |
| Location | Not Applicable |
| Native Sample Rate | 1.0 Hz |
| UDP Port(s) | 53155 59155 |
| Enabled | False |
General Description
The Apollo ASP3 provides sea surface and atmospheric pCO2. An integrated SBE-45 thermosalinograph supports temperature and salinity correction, while the addition of 1-5 calibration gases ensures compensation with reference to known standards. Surface seawater travels through a showerhead equilibrator with a response time of 2 minutes. The equilibrated air is then dried and analyzed with an infrared or lased-based CO2 gas analyzer, the Li Cor LI-7815.
| Native Data Feed At The Sensor | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Signal Type | Digital | ||||||||||||||
| Communication Type | Ethernet | ||||||||||||||
| Serial Details |
|
||||||||||||||
| Ethernet Details |
|
||||||||||||||
| Source File Details |
|
||||||||||||||
| Native Data Format | |||||||||||||||
| Native Data Description | Data comes derived from the sensor, measurements are provided in calibrated and corrected format from the sensor. Data is broadcast over UDP and output in a JSON format. | ||||||||||||||
| Native Data Type | text | ||||||||||||||
| Start of Message Characters | |||||||||||||||
| End of Message Characters | |||||||||||||||
| Number of Fields to Trim | 0 | ||||||||||||||
| Sample Data Message | [#v2.0[\#2024/07/28 16:43:28\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#Manual\#,\#Air\#,\#NaN\#,\#NaN\#,\#495.704\#,\#11.0068\#,\#39.9202\#,\#54.9995\#,\#0\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#18.3755\#,\#0.10631\#,\#0.6092\#,\#102.00\#,\#1006.73\#,\#16.66\#,\#0.01\#,\#6.66\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#OFF | OFF\#,\#\#,\#180\#,\#100\#,\#Continuous\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#,\#\#]#] | ||||||||||||||
| Message Parser Format | ['^\[\Wv\d+\.\d+\[\W\W(?P<sensordatetime_unitless>\d\d\d\d/\d\d/\d\d \d\d:\d\d:\d\d)\W\W,\W\W(?P<gps_datetime>[^,]*)\W\W,\W\W(?P<latitude>[^,]*)\W\W,\W\W(?P<longitude>[^,]*)\W\W,\W\W(?P<garmin_status>[^,]*)\W\W,\W\W(?P<garmin_datetime>[^,]*)\W\W,\W\W(?P<garmin_latitude>[^,]*)\W\W,\W\W(?P<garmin_longitude>[^,]*)\W\W,\W\W(?P<ship_gps_format>[^,]*)\W\W,\W\W(?P<ship_time>[^,]*)\W\W,\W\W(?P<ship_latitude>[^,]*)\W\W,\W\W(?P<ship_longitude>[^,]*)\W\W,\W\W(?P<sensormode_unitless>\w+)\W\W,\W\W(?P<samplesource_unitless>[\w\s\-\.]+)\W\W,\W\W(?P<xco2stddev_ppm>[Na\d\.]+)\W\W,\W\W(?P<xco2_ppm>[\-\d\.\w]*)\W\W,\W\W(?P<xco2uncorr_ppm>\-?\d+\.\d+)\W\W,\W\W(?P<watervapor_1perml>\-?\d+\.\d+)\W\W,\W\W(?P<cavitypressure_kpa>\-?\d+\.\d+)\W\W,\W\W(?P<cavitytemperature_degreesc>\-?\d+\.\d+)\W\W,\W\W(?P<diagnosticcode_unitless>\d+)\W\W,(?P<li_7810>(\W\W[^,]*\W\W,){6})(?P<li_7000>(\W\W[^,]*\W\W,){7})(?P<li_850>(\W\W[^,]*\W\W,){6})(?P<picarro>(\W\W[^,]*\W\W,){6})\W\W(?P<seawatertemperature_degreesc>(\-?\d+\.\d+)?)\W\W,\W\W(?P<seawaterconductivity_sperm>(\-?\d+\.\d+)?)\W\W,\W\W(?P<seawaterpracticalsalinity_unitless>(\-?\d+\.\d+)?)\W\W,\W\W(?P<gasflowrate_mlperminute>\-?\d+\.\d+)\W\W,\W\W(?P<equilibratorpressure_mbar>(\-?\d+\.\d+)?)\W\W,\W\W(?P<equilibratortemperature_degreesc>(\-?\d+\.\d+)?)\W\W,\W\W(?P<waterflowrate_lperminute>(\-?\d+\.\d+)?)\W\W,\W\W(?P<coolingpadtemperature_degreesc>(\-?\d+\.\d+)?)\W\W,(?P<fluorescence>(\W\W[^,]*\W\W,){3})(?P<oxygen>(\W\W[^,]*\W\W,){5})(?P<durafet>(\W\W[^,]*\W\W,){2})\W\W(?P<sensoroperator_unitless>(\w*)?)\W\W,\W\W(?P<note>[^,]*)\W\W,\W\W(?P<overflowalarm_unitless>(\w*))\s?\|?\s?(?P<shutoffvalvealarm_unitless>(\w*))\W\W,\W\W(?P<measurementcount_unitless>\d*)\s?\|?\s?(?P<measurementstddev_ppm>[\d\.]*)\W\W,\W\W(?P<measurementinterval_s>\d*)\s?\|?\s?(?P<purgeinterval_s>\d*)\W\W,\W\W(?P<flowrate_mlperminute>\-?\d*)\s?\|?\s?(?P<purgeflowrate_mlperminute>\-?\d*)\W\W,\W\W(?P<testtype_unitless>\w+)\W\W,(?P<weather_station>(\W\W[^,]*\W\W,){9})(?P<li_7820>(\W\W[^,]*\W\W,){4}\W\W[^,]*\W\W)\]\W\]$'] | ||||||||||||||
| Data/Message ID | |||||||||||||||
| Data Processing | |||||||||||||||
| Data Processing Script | pCO2 | ||||||||||||||
| Data Rates | |||||||||||||||
| Native Sample Rate | 1.0 Hz | ||||||||||||||
| Shipboard Network Packet Rate | 1.0 Hz | ||||||||||||||
| Ship to Shore Rate | 1.0 Hz | ||||||||||||||
| Data Storage & Access | |||||||||||||||
| Raw Data Ethernet Distribution |
|
||||||||||||||
| Transformed Data Ethernet Distribution |
|
||||||||||||||
| OpenRVDAS Logger Mode | file/db | ||||||||||||||
| EEZ Logger Mode | off | ||||||||||||||
| InfluxDB Port | None | ||||||||||||||
| Archive to Database | True | ||||||||||||||
| Transmit Real-time Data to Shore | True | ||||||||||||||
| Time Source | |||||||||||||||
| Source | local_time_server | ||||||||||||||
| Long Name | Short Name | Units | Diagnostic | |
|---|---|---|---|---|
| Partial Pressure of Carbon Dioxide in Air | air_pco2 | uatm | False | |
| Cavity Pressure | cavity_pressure | kPa | True | |
| Cavity Temperature | cavity_temperature | degrees_C | True | |
| Cooling Pad Temperature | cooling_pad_temperature | degrees_C | True | |
| Diagnostic Code | diagnostic_code | unitless | True | |
| Partial Pressure of Carbon Dioxide in the Equilibrator | equilibrator_pco2 | uatm | False | |
| Equilibrator Pressure | equilibrator_pressure | mbar | True | |
| Equilibrator Temperature | equilibrator_temperature | degrees_C | True | |
| Flow Rate | flow_rate | ml/minute | True | |
| Gas Flow Rate | gas_flow_rate | ml/minute | True | |
| GPS Datetime | gps_datetime | unitless | True | |
| Latitude | latitude | degrees | False | |
| Longitude | longitude | degrees | False | |
| Number of Measurements | measurement_count | unitless | True | |
| Measurement Interval | measurement_interval | s | True | |
| Measurement Standard Deviation | measurement_stddev | ppm | True | |
| Overflow Alarm | overflow_alarm | unitless | True | |
| Purge Flow Rate | purge_flow_rate | ml/minute | True | |
| Purge Interval | purge_interval | s | True | |
| Sample Source | sample_source | unitless | True | |
| Sea Water Electrical Conductivity | sea_water_conductivity | S/m | True | |
| Partial Pressure of Carbon Dioxide in Seawater | sea_water_pco2 | uatm | False | |
| Sea Water Practical Salinity | sea_water_practical_salinity | unitless | False | |
| Sea Water Temperature | sea_water_temperature | degrees_C | False | |
| Sensor Datetime | sensor_datetime | unitless | True | |
| Sensor Mode | sensor_mode | unitless | True | |
| Operator | sensor_operator | unitless | True | |
| Shutoff Valve Alarm | shutoff_valve_alarm | unitless | True | |
| Test Type | test_type | unitless | True | |
| Water Flow Rate | water_flow_rate | l/minute | True | |
| Water Vapor | water_vapor | 1/ml | False | |
| Water Vapor Pressure | water_vapor_pressure | atm | False | |
| xCO2 | xco2 | ppm | False | |
| xCO2 Standard Deviation | xco2_stddev | ppm | True | |
| xCO2 Uncorrected | xco2_uncorr | ppm | True |
| Operating Limits | |
|---|---|
| Input Power | 115.0 - 120.0 V AC |
| Ideal Power | 115.0 V AC |
| Operating Current | None - None mA @ None V AC |
| Analog Output | None - None |
| Operating Flow Rate | 63.0 - 83.0 ml s-1 |
| Ideal Flow Rate | 67.0 ml s-1 |
| Operating Depth | 0 - 0 m |
| Operating Temperature | -25 - 45 degree_C |
| Lamp Life | None days |
| Response Time | 120.0 seconds |
| Additional Time Offset | 1.0 seconds |
| Physical Status | |
| Current Location | no longer in possession |
| Current Status | unavailable |
| Physical Condition | good |
| Physical Configuration | Gas regulator with stable delivery pressure of 15 psi (1 atm), high-quality 2-stage regulators with full delivery pressure range of 30 to 50 psi, type CGA-590 for air-balanced tanks, 3/4" PVC pipe or |
| Software Version | AS-pco2-RV3.0 |
| Software Configuration | |
| Data Acquisition Device ID | |
| Communication Type at the Data Acquisition Device | |
| Data Acquisition Device Serial Port | |
| Data Acquisition Device Analog/Digital Port(s) | |
| Data Acquisition Device Modbus Unit/Device IDs | |
| Data Acquisition Device Modbus Function Codes | |
| Data Acquisition Device Modbus Registers | |
| Data Acquisition Device Modbus Retransmit UDP Ports | |
| Sensor Use Level | |
| Enabled | False |
| Vessel Installation Location | |
| Vessel | sikuliaq |
| Vessel Location | Not Applicable |
| Location Coordinates (meters) | |
| Sensor Orientation | not applicable |
| Height Above Waterline (meters) | None |
| Zero Line Reference (degrees from bow) | None |
| Receives Filtered Water | False |
Sensor Log
| Date (UTC) | Submitter | Event Type | Details | ||||
|---|---|---|---|---|---|---|---|
| Apr 13 2026 20:00:23 | Nahorniak, Jasmine | parameter specs update | data_fieldname changed from [value] to [] | ||||
| Apr 13 2026 20:00:23 | Nahorniak, Jasmine | parameter specs update | convention changed from [degrees (+W/-E)] to [degrees (-W/+E)] | ||||
| Apr 13 2026 19:57:44 | Nahorniak, Jasmine | parameter specs update | display_format changed from [3.2f] to [] | ||||
| Apr 13 2026 19:57:44 | Nahorniak, Jasmine | parameter specs update | data_fieldname changed from [value] to [] | ||||
| Apr 13 2026 19:57:44 | Nahorniak, Jasmine | parameter specs update | convention changed from [] to [degrees (+W/-E)] | ||||
| Apr 13 2026 19:57:44 | Nahorniak, Jasmine | parameter specs update | processing_symbol changed from [longitude] to [] | ||||
| Apr 13 2026 19:57:31 | Nahorniak, Jasmine | parameter specs update | display_format changed from [3.2f] to [] | ||||
| Apr 13 2026 19:57:31 | Nahorniak, Jasmine | parameter specs update | data_fieldname changed from [value] to [] | ||||
| Apr 13 2026 19:57:31 | Nahorniak, Jasmine | parameter specs update | convention changed from [] to [degrees (+N/-S)] | ||||
| Apr 13 2026 19:57:31 | Nahorniak, Jasmine | parameter specs update | processing_symbol changed from [latitude] to [] | ||||
| Oct 22 2025 22:25:10 | Nahorniak, Jasmine | sensor specs update | retransmit_ip changed from [10.3.0.36] to [127.0.0.1] | ||||
| Oct 22 2025 19:52:22 | Nahorniak, Jasmine | sensor specs update | retransmit_port changed from [None] to [59155] | ||||
| Oct 22 2025 19:52:22 | Nahorniak, Jasmine | sensor specs update | retransmit_ip changed from [] to [10.3.0.36] | ||||
| Nov 06 2024 16:08:11 | Greto, Carmen | sensor specs update | use_level changed from [secondary] to [] | ||||
| Nov 06 2024 16:08:11 | Greto, Carmen | sensor specs update | location_text changed from [Wet Lab] to [Not Applicable] | ||||
| Nov 06 2024 16:08:11 | Greto, Carmen | sensor specs update | enabled changed from [True] to [False] | ||||
| Nov 06 2024 16:08:11 | Greto, Carmen | sensor specs update | current_status changed from [in use] to [unavailable] | ||||
| Nov 06 2024 16:08:11 | Greto, Carmen | sensor specs update | current_location changed from [installed] to [no longer in possession] | ||||
| Aug 12 2024 19:00:00 | Black, Ian | diagnosis | The Apollo data are now stable and integrated with the calibration standards. Data collected prior to this timestamp was used to diagnose sensor issues and should be considered bad/experimental. | ||||
| Aug 12 2024 18:45:59 | Black, Ian | sensor specs update | current_status changed from [testing in progress] to [in use] | ||||
| Aug 09 2024 19:00:00 | Black, Ian | issue | The LI-7815 is reporting negative values, which should be physically impossible. Tests are being performed to diagnose this issue. | ||||
| Aug 09 2024 18:00:00 | Black, Ian | test | The 418.9ppm was applied to the Apollo after testing for gas line leaks. | ||||
| Aug 04 2024 21:23:37 | Black, Ian | sensor specs update | maintenance_C_freq_days changed from [None] to [0] | ||||
| Aug 04 2024 21:23:37 | Black, Ian | sensor specs update | maintenance_C_text changed from [test001] to [Freshwater Flush] | ||||
| Aug 04 2024 21:23:37 | Black, Ian | sensor specs update | maintenance_B_freq_days changed from [None] to [3] | ||||
| Aug 04 2024 21:23:37 | Black, Ian | sensor specs update | maintenance_B_text changed from [] to [Secondary Filter Check] | ||||
| Aug 04 2024 21:23:37 | Black, Ian | sensor specs update | maintenance_A_text changed from [Filter Check] to [Primary Filter Check] | ||||
| Aug 04 2024 21:23:37 | Black, Ian | sensor specs update | condition changed from [excellent] to [good] | ||||
| Aug 04 2024 21:23:37 | Black, Ian | sensor specs update | depth_max_meters changed from [None] to [0] | ||||
| Aug 04 2024 21:23:37 | Black, Ian | sensor specs update | depth_min_meters changed from [None] to [0] | ||||
| Aug 04 2024 21:23:37 | Black, Ian | sensor specs update | flow_rate_ideal_mls changed from [63.0] to [67] | ||||
| Aug 04 2024 21:23:37 | Black, Ian | sensor specs update | flow_rate_min_mls changed from [67.0] to [63] | ||||
| Aug 04 2024 21:23:37 | Black, Ian | sensor specs update | description changed from [Flowthrough measurem ... the Li Cor LI-7815.] to [The Apollo ASP3 prov ... the Li Cor LI-7815.] | ||||
| Aug 02 2024 17:00:00 | Black, Ian | change of use level | Data collected by the Apollo prior to this timestamp and until another change in use level should be considered experimental and likely does not reflect natural changes. | ||||
| Aug 02 2024 17:00:00 | Black, Ian | test | The Apollo ASP3 was turned on with seawater-air cycles only until the LDEO pCO2 system has the new calibration gas installed and is tested with satisfaction. | ||||
| Jul 31 2024 18:01:00 | Black, Ian | software update | Users may recalculate bad air_pco2 from CORIOLIX output by using air xCO2, barometric pressure from a shipside source, and water vapor pressure calculated using the intake SBE 38 and SBE45. | ||||
| Jul 31 2024 18:00:00 | Black, Ian | software update | An issue with the air_pco2 value calculation was identified. The incorrect units were used for pressure. air_pco2 data prior to this timestamp are considered bad. A patch was pushed to fix this issue. | ||||
| Jul 30 2024 20:01:00 | Black, Ian | issue | The Apollo sampling routine has been disabled until we can determine the optimal standard sampling pattern and verify there are no more standard leaks. Priority is to keep the LDEO running. | ||||
| Jul 30 2024 20:00:00 | Black, Ian | issue | The 385ppm standard drained overnight. There is concern of a leak and that the Apollo may be drawing more standard than anticipated. The standards to the Apollo have been closed off. | ||||
| Jul 29 2024 06:02:10 | Black, Ian | sensor specs update | warranty_end_date changed from [None] to [2026-06-30 00:00:00+00:00] | ||||
| Jul 29 2024 06:02:10 | Black, Ian | sensor specs update | replacement_date changed from [None] to [2025-06-30 00:00:00+00:00] | ||||
| Jul 29 2024 06:02:10 | Black, Ian | sensor specs update | last_cal_date changed from [None] to [2024-07-15 00:00:00+00:00] | ||||
| Jul 29 2024 06:02:10 | Black, Ian | sensor specs update | cal_recommended_freq_months changed from [None] to [24] | ||||
| Jul 29 2024 06:02:10 | Black, Ian | sensor specs update | maintenance_A_freq_days changed from [None] to [1] | ||||
| Jul 29 2024 06:02:10 | Black, Ian | sensor specs update | maintenance_A_text changed from [] to [Filter Check] | ||||
| Jul 29 2024 06:02:10 | Black, Ian | sensor specs update | time_source changed from [] to [local_time_server] | ||||
| Jul 28 2024 18:55:34 | Nahorniak, Jasmine | renamed sensor | Changed sensor ID from pcotwo002202 to pcotwo002101. | ||||
| Jul 28 2024 18:51:45 | Black, Ian | sensor specs update | sensor_orientation changed from [] to [not applicable] | ||||
| Jul 28 2024 18:51:45 | Black, Ian | sensor specs update | software_version changed from [AS-pco2-RV2.0] to [AS-pco2-RV3.0] | ||||
| Jul 28 2024 18:51:45 | Black, Ian | sensor specs update | current_status changed from [calibration in progress] to [testing in progress] | ||||
| Jul 28 2024 18:51:45 | Black, Ian | sensor specs update | power_ideal_volts changed from [None] to [115.0] | ||||
| Jul 27 2024 21:49:31 | Race, Julian | sensor specs update | sensor_ip changed from [10.3.0.155] to [10.3.0.45] | ||||
| Jul 27 2024 21:44:28 | Race, Julian | sensor specs update | enabled changed from [False] to [True] | ||||
| Jul 27 2024 21:44:28 | Race, Julian | sensor specs update | serial_number changed from [2202-OSU] to [2101-OSU] | ||||
| Jul 27 2024 14:40:04 | Greto, Carmen | sensor specs update | location_text changed from [Main Lab] to [Wet Lab] | ||||
| Jul 27 2024 14:40:04 | Greto, Carmen | sensor specs update | current_location changed from [RDESC] to [installed] | ||||
| Jul 27 2024 14:38:49 | Greto, Carmen | sensor specs update | sensor_name changed from [pCO2] to [pCO2_Apollo] | ||||
| Jul 26 2024 12:00:00 | Black, Ian | installation | Sensor was installed in the SKQ Wet Lab. | ||||
| Jul 02 2024 22:38:36 | Nahorniak, Jasmine | sensor specs update | retransmit_port changed from [40325] to [None] | ||||
| Jul 02 2024 22:38:36 | Nahorniak, Jasmine | sensor specs update | retransmit_ip changed from [172.16.40.255] to [] | ||||
| Jul 02 2024 22:38:36 | Nahorniak, Jasmine | sensor specs update | transmit_port changed from [30325] to [53155] | ||||
| Jul 02 2024 22:38:36 | Nahorniak, Jasmine | sensor specs update | transmit_ip changed from [172.16.30.29] to [10.3.0.255] | ||||
| Jul 02 2024 22:38:36 | Nahorniak, Jasmine | sensor specs update | sensor_ip changed from [170.16.30.95] to [10.3.0.155] | ||||
| Jul 02 2024 18:41:08 | Nahorniak, Jasmine | sensor specs update | vendor changed from [Not Applicable] to [Apollo Scitech] | ||||
| Jul 02 2024 17:26:28 | Nahorniak, Jasmine | sensor specs update | use_level changed from [primary] to [secondary] | ||||
| Jul 02 2024 17:26:28 | Nahorniak, Jasmine | sensor specs update | vessel changed from [Taani] to [Sikuliaq] | ||||
| Jul 02 2024 17:26:28 | Nahorniak, Jasmine | sensor specs update | vendor changed from [Apollo Scitech] to [Not Applicable] | ||||
Calibration & Maintenance
| Frequency | Last Completed | Next Due |
|---|---|---|
| Maintenance A: Primary Filter Check | ||
| 1 days | ||
| Maintenance B: Secondary Filter Check | ||
| 3 days | ||
| Maintenance C: test001 | ||
| Calibration | ||
| 24 months | Jul 15 2024 | Jul 15 2026 |
| Recommended Replacement | ||
| Jun 30 2025 | ||
| Warranty | ||
| Jun 30 2026 | ||
User Guides & Documents
| Date | Version | Author | Type | Document | Access |
|---|---|---|---|---|---|
| Jul 28 2024 | 1 | sensor_image | apollo_asp3_image | ||
| Jun 01 2024 | 2 | Apollo Scientific/LICOR | user_manual | apollo_asp3_manual_v202406 | |
| Jul 29 2024 | 1 | Anna Hughes | instruction_sheet | apollo_skq_info |
Ownership
| Quantity | Value |
|---|---|
| Owner | RDESC |
| Responsible Party | RDESC |
| Inventory ID | |
| Purchase Date | Mar 05 2020 |
| Acquire Date | |
| Acquire Condition | excellent |
| End/Lost Ownership Date |
Vendor Support
| Support Type | Details |
|---|---|
| Company | Apollo Scitech |
| Website | https://apolloscitech.com/ |
| Phone | +1 302 861 6557 |
| admin@apolloscitech.com | |
| Shipping | Apollo SciTech, LLC 18 Shea Way, Suite 108-109 Newark, DE 19713, USA |
Copyright Notice: All sensor-specific images and documentation on this page are copyright of the vendor.
