ANDE
ILRS Mission Support Status:
SLR will augment GPS and SSN observations to improve precision orbit determination process.
Current ILRS Tracking Statistics:
| Satellite | Site Name | Station | Start Date | End Date | No. Passes | No. Points |
|---|---|---|---|---|---|---|
| ANDEC | Borowiec | 7811 | 14-Sep-2009 | 21-Nov-2009 | 7 | 42 |
| ANDEC | Changchun | 7237 | 21-Aug-2009 | 01-Aug-2010 | 75 | 727 |
| ANDEC | Concepcion | 7405 | 04-Feb-2010 | 04-Feb-2010 | 1 | 6 |
| ANDEC | Graz | 7839 | 26-Aug-2009 | 08-Jul-2010 | 60 | 1,430 |
| ANDEC | Greenbelt | 7105 | 15-Aug-2009 | 23-Apr-2010 | 90 | 2,519 |
| ANDEC | Haleakala | 7119 | 24-Aug-2009 | 02-Sep-2009 | 4 | 28 |
| ANDEC | Hartebeesthoek | 7501 | 17-Aug-2009 | 02-Feb-2010 | 2 | 15 |
| ANDEC | Herstmonceux | 7840 | 28-Aug-2009 | 26-Jun-2010 | 73 | 1,255 |
| ANDEC | Katzively | 1893 | 18-Aug-2009 | 03-Jul-2010 | 11 | 122 |
| ANDEC | Koganei | 7308 | 08-Nov-2009 | 08-Nov-2009 | 1 | 11 |
| ANDEC | Matera | 7941 | 09-Sep-2009 | 12-Oct-2009 | 2 | 12 |
| ANDEC | Monument Peak | 7110 | 14-Aug-2009 | 21-Jul-2010 | 21 | 303 |
| ANDEC | Mount Stromlo | 7825 | 25-Aug-2009 | 17-May-2010 | 12 | 63 |
| ANDEC | Potsdam | 7841 | 19-Sep-2009 | 27-Dec-2009 | 6 | 178 |
| ANDEC | Riga | 1884 | 25-Aug-2009 | 15-Nov-2009 | 2 | 22 |
| ANDEC | San Fernando | 7824 | 07-Sep-2009 | 17-Mar-2010 | 9 | 83 |
| ANDEC | San Juan | 7406 | 13-Sep-2009 | 27-Jul-2010 | 6 | 51 |
| ANDEC | Stafford | 7865 | 18-Aug-2009 | 18-Aug-2009 | 1 | 25 |
| ANDEC | Yarragadee | 7090 | 04-Aug-2009 | 22-Jul-2010 | 322 | 8,122 |
| ANDEC | Zimmerwald | 7810 | 09-Sep-2009 | 08-Jun-2010 | 14 | 180 |
| ANDEP | Borowiec | 7811 | 19-Sep-2009 | 19-Sep-2009 | 1 | 12 |
| ANDEP | Changchun | 7237 | 21-Aug-2009 | 04-Feb-2010 | 36 | 282 |
| ANDEP | Graz | 7839 | 26-Aug-2009 | 01-Feb-2010 | 26 | 499 |
| ANDEP | Greenbelt | 7105 | 20-Aug-2009 | 16-Mar-2010 | 47 | 1,202 |
| ANDEP | Haleakala | 7119 | 24-Aug-2009 | 18-Dec-2009 | 3 | 29 |
| ANDEP | Hartebeesthoek | 7501 | 02-Sep-2009 | 02-Feb-2010 | 2 | 18 |
| ANDEP | Herstmonceux | 7840 | 28-Aug-2009 | 06-Mar-2010 | 44 | 584 |
| ANDEP | Katzively | 1893 | 21-Sep-2009 | 23-Nov-2009 | 8 | 75 |
| ANDEP | Koganei | 7308 | 07-Sep-2009 | 07-Sep-2009 | 1 | 3 |
| ANDEP | Matera | 7941 | 12-Oct-2009 | 12-Oct-2009 | 2 | 29 |
| ANDEP | Monument Peak | 7110 | 14-Aug-2009 | 23-Feb-2010 | 5 | 58 |
| ANDEP | Mount Stromlo | 7825 | 28-Aug-2009 | 08-Feb-2010 | 2 | 4 |
| ANDEP | Potsdam | 7841 | 23-Sep-2009 | 23-Sep-2009 | 1 | 10 |
| ANDEP | Riga | 1884 | 25-Aug-2009 | 25-Aug-2009 | 1 | 10 |
| ANDEP | San Fernando | 7824 | 08-Sep-2009 | 25-Oct-2009 | 4 | 31 |
| ANDEP | Simeiz | 1873 | 23-Aug-2009 | 23-Aug-2009 | 1 | 6 |
| ANDEP | Yarragadee | 7090 | 04-Aug-2009 | 16-Mar-2010 | 128 | 2,940 |
| ANDEP | Zimmerwald | 7810 | 27-Aug-2009 | 27-Aug-2009 | 1 | 22 |
ANDE Mission Support Request Form (December 2008):
Name: ANDE Castor & ANDE Pollux
Host: Naval Research Laboratory
Primary Technical Contact: Andrew Nicholas
Technical Contact Mailing Address: Naval Research Laboratory
Code 7669, 4555 Overlook Avenue, Washington, D.C., 20375 USA
Technical Contact Phone: 202-767-2441
Technical Contact Fax: 202-767-9388
Technical Contact Email: andrew.nicholas @ nrl.navy.mil
Alternate Technical Contact: Mark Davis
Alternate Technical Contact Mailing Address: Naval Research Laboratory
Code 8123, 4555 Overlook Avenue, Washington, D.C., 20375 USA
Alternate Technical Contact Phone: 202-767-2829
Alternate Technical Contact Fax: 202-404-1226
Alternate Technical Contact Email: mark.davis @ nrl.navy.mil
Primary Science Contact: Andrew Nicholas
Science Contact Mailing Address: Naval Research Laboratory
Code 7669, 4555 Overlook Avenue, Washington, D.C., 20375 USA
Science Contact Phone: 202-767-2441
Science Contact Fax: 202-767-9388
Science Contact Email: andrew.nicholas @ nrl.navy.mil
Alternate Science Contact: Mark Davis
Alternate Science Contact Mailing Address: Naval Research Laboratory
Code 8123, 4555 Overlook Avenue, Washington, D.C., 20375 USA
Alternate Science Contact Phone: 202-767-2829
Alternate Science Contact Fax: 202-404-1226
Alternate Science Contact Email: mark.davis @ nrl.navy.mil
MISSION SPECIFICS:
Determine total atmospheric density in orbital plane, measure neutral winds, temperature and composition.
Satellite Laser Ranging (SLR) Role of Mission: Augment SSN observations to improve
precision orbit determination process.
Anticipated Launch Date: 1 May 200
Expected Mission Duration: ANDE Castor (19" diameter sphere) 2 year, ANDE Pollux (19" diameter sphere) 1 yrs
ANTICIPATED ORBITAL PARAMETERS:
Altitude: 350 km
Inclination: 51.6 deg
Eccentricity: 0.0007
TRACKING REQUIREMENTS:
Tracking Schedule: targeted campaigns, continuous when available
Spatial Coverage: back-to-back revs requested
Temporal Coverage: TBD
Data Accuracy: Better than 1 cm, full-rate data when available
OPERATIONS REQUIREMENTS:
Mission Coordinator (ILRS, Subnetwork, etc.):
Priority of SLR for POD: Moderate
Other Sources of POD (GPS, PRARE, Doppler, etc.): GPS, SSN radar and optical
Primary Analysis Center: Naval Research Laboratory
Normal Point Time Span (sec): 5 s
Subnetworks/Stations Requested to Track: Any Available
Data Delivery Time Requirements: TBD
RETROREFLECTOR ARRAY INFORMATION:
Description of Array and Location: Each spacecraft is fitted with a set of thirty 12.7 mm (Edmunds same as previous ANDE flight) diameter optical retro reflectors for SLR located along latitudinal bands at ±90º, ±52.5º and ±15º with one, six and eight retros per band respectively.
Technical Contact for Array Correction/Center of Mass: Mark Davis / Ted Finne
Phone No.: 202-767-2829/202-404-3978
E-mail Address: mark.davis @ nrl.navy.mil, ted.finne @ nrl.navy.mil
Other Comments: The science goals of this mission include:
- Verify the secular decrease in thermospheric density (and secular thermospheric cooling);
- Measure neutral winds, temperature and composition;
- Confirm or refute severe deficiencies in NRLMSISE-00 and similar empirical thermospheric models, as inferred from long-term orbit data;
- Revolutionize the formulation of the NRLMSISE-00 thermospheric solar response model (under the likely result that NRLMSISE-00 significantly overestimates the total mass density at solar minimum);
- Allow precise studies and testing of models for estimating satellite and spacecraft ballistic coefficients, greatly improving estimates of drag in predictions of orbit trajectories of operational systems;
- Combined with technology developed at NRL, will permit direct determination and improve estimates of true spacecraft and satellite ballistic coefficients and of local thermospheric density for daily drag prediction.
MISSION CONCURRENCE:
As an authorized representative of the Atmospheric Neutral Density Experiment mission, I hereby request and authorize the ILRS to track the satellite described in this document.
Name (print): Andrew Nicholas
Date: 07/15/09
Signature:
Position: Principal Investigator, ANDE-2
Naval Research Lab
Code 7669
Washington, DC 20275
Related Publications:
