Survey history data
Pre-Programmed Pointing Lists
The Pre-Programmed Pointing Lists (PPL) are made by Planck Science Office from the Baseline Scanning Strategy with the help of the Software Planning and Performance Tool. They are sent to MOC/FD for use in making the Augmented Pre-Programmed Pointing Lists (APPL) used for commanding the spacecraft attitude.
The PPL file name is the following: YYYYMMDD_yyyymmdd_NNNN_X.PPL
with YYYYMMDD = start date of the valid span of the PPL file
yyyymmdd = end date of the valid span of the PPL file
NNNN = unique sequence number, in the range 0000 ≤ NNNN ≤ 9999, incrementing sequentially throughout the mission and uniquely identifying each new PPL file that is generated (i.e. no repeated numbers and no gaps in the sequence of PPLs) o 0000-8999 reserved for PSO o 9000-9999 reserved for attitude manoeuvres generated by MOC
X = type of PPL, as follows: o R = Routine (standard 4-week PPL) o C = Contingency (3-day replanning) o L = Long-Term PPL (LTPPL) o S = Special
PPLs contain the following information in ASCII columns:
- pointing reference number
- Ecliptic longitude
- Ecliptic latitude
- nominal start time for pointing
- earliest allowed start time
- latest allowed start time
- nominal dwell time
- observation type
PPLs can be found in the Planck Legacy Archive in the "Time-Ordered Information: Operational Files" section, ordered normally by periods of a month. A full list of the available files can be found here.
Detailed information about the PPL's can be found here: PPL ICD
Augmented Pre-Programmed Pointing Lists
APPLs are made by MOC / Flight Dynamics using pointing information (PPLs) from the Planck Science Office.
The APPLs incorporate information about the Operational Days boundaries in order to fit pointings into each OD.
APPLs are grouped and summarized by MOC to form files called the APPL Summary Files or APS.
These are delivered in the Planck Legacy Archive in the "Time-Ordered Information: Operational Files" section, by Operational Day. A full list of the available files can be found here.
Detailed information about the APPL's can be found here: APPL Interface Control Document
Attitude History Files
The pointing history of Planck is described in the Attitude History Files (AHF) sequence. All the AHF can be found in the Planck Legacy Archive, for three different methods of computation ( AHF, DHF, GHF).
The GHF are made using refined pointing information from the Fiber Optics Gyroscope.
Available information concerning the AHF can be found here: AHF Interface Control Document
Focal plane geometry
The Spacecraft-Instrument Alignment Matrix (SIAM) contains all the geometry information for each detector of both instruments with respect to the main optical frame.
The last updated SIAM is provided in the Planck Legacy Archive in the "Time-Ordered Information: Operational Files" section and can also be downloaded here
Information about the structure of the SIAM can be found here: SIAM ICD
Example of SIAM information: for each detector the geometry data are provided:
100-1a 2012-05-21T12:20:33Z 2009-05-14T13:12:00Z
+6.0720828748030420D-02 -2.0182099307153797D-02 +9.9795073216251973D-01
+9.1870882469655513D-01 +3.9201126860886798D-01 -4.7971457225525649D-02
-3.9023976781054348D-01 +9.1973901088907972D-01 +4.2344721842881641D-02
100-1b 2012-05-21T12:20:33Z 2009-05-14T13:12:00Z
+6.0701704221756109D-02 -2.0112134059606067D-02 +9.9795330811022553D-01
+3.6930168885547898D-01 -9.2839700605522935D-01 -4.1173556516014474D-02
+9.2732495152080596D-01 +3.7104514713341125D-01 -4.8927835387228120D-02
143-1a 2012-05-21T12:20:33Z 2009-05-14T13:12:00Z
+1.0777605789673984D-01 -2.3428762574447454D-02 +9.9389909670371901D-01
+6.9845387670400361D-01 +7.1322499496182634D-01 -5.8926128999380371D-02
-7.0749311195331566D-01 +7.0054350303598756D-01 +9.3232488396908259D-02
143-1b 2012-05-21T12:20:33Z 2009-05-14T13:12:00Z
+1.0778382836227447D-01 -2.3451301846261791D-02 +9.9389772249728381D-01
+7.3378157679069944D-01 -6.7264740206943763D-01 -9.5446686960791699D-02
+6.7078107002667198D-01 +7.3959144730787174D-01 -5.5292378886437468D-02
217-1 2012-05-21T12:20:33Z 2009-05-14T13:12:00Z
+6.9536754016818220D-02 -1.6979192448348744D-02 +9.9743488352102772D-01
+1.1808481560694440D-03 +9.9985584312129827D-01 +1.6938080582827864D-02
-9.9757869135143240D-01 +0.0000000000000000D+00 +6.9546779663498287D-02
353-1 2012-05-21T12:20:33Z 2009-05-14T13:12:00Z
+8.7069162938225447D-02 -3.5549378340174860D-02 +9.9556777899089488D-01
+3.0972122976328201D-03 +9.9936792108793815D-01 +3.5414200207773784D-02
-9.9619745439406726D-01 -2.1175823681357513D-22 +8.7124232328209705D-02
143-5 2012-05-21T12:20:33Z 2009-05-14T13:12:00Z
+1.1717127774596003D-01 -1.9543330278624677D-02 +9.9291940756186214D-01
+2.2903544129261044D-03 +9.9980901088238894D-01 +1.9408658764649294D-02
-9.9310908058885550D-01 +1.0842021724855047D-19 +1.1719366045976087D-01
217-5a 2012-05-21T12:20:33Z 2009-05-14T13:12:00Z
+7.8306055032829461D-02 -2.0852430804578555D-02 +9.9671126103537944D-01
+6.8116502453463090D-01 +7.3113166028431409D-01 -3.8219166404281218D-02
-7.2793019658201552D-01 +6.8191764272486954D-01 +7.1455982567074930D-02
The orbit file is produced by the Flight Dynamics team at ESOC and contains the information of the Planck orbital history throughout the whole mission (since launch).
This product is available in the Planck Legacy Archive interface in the "Time-ordered information : Orbit file" section. Only one orbit file is delivered since it contains all the past information for the whole of the Planck mission.
The orbit file can be downloaded here.
Orbit events file
The orbit events file .LEV is produced by the Flight Dynamics team at ESOC and contains the information of the Planck orbit events throughout the whole mission (since launch).
This product is available in the Planck Legacy Archive interface in the "Time-ordered information : Orbit events file" section. Only one orbit events file is delivered since it contains all the past information for the whole of the Planck mission.
The orbit events file can be downloaded here.
Pre-programmed Pointing List
[ESA's] Mission Operation Center [Darmstadt, Germany]
Augmented Preprogrammed Pointing List
Planck Science Office
Operation Day definition is geometric visibility driven as it runs from the start of a DTCP (satellite Acquisition Of Signal) to the start of the next DTCP. Given the different ground stations and spacecraft will takes which station for how long, the OD duration varies but it is basically once a day.
Attitude History File
Spacecraft Instrument Alignment Matrix
European Space Operations Centre (Darmstadt)