ASTROSAT CZTI

Data Quality Report

Orbit 08511

Creation date: 2024-06-27T15:33:41.301176
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_060T01_9000001200_08511cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08511cztM0_level2_quad_clean.evt
Size (bytes)749,085,120120,170,880
Size714.4 MB 114.6 MB
Events in quadrant A4,918,106751,211
Events in quadrant B5,147,698763,914
Events in quadrant C4,676,896742,669
Events in quadrant D7,247,297669,713

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02120
B02122
C02124
D02120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021715258
B022084204
C021190164
D0301031184

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10277660.642211%
B102881131.098367%
C10301270.262110%
D102018328.156063%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 12965 10377 19 19 0.15% 0.18%
B 12965 10375 33 33 0.25% 0.32%
C 12965 10377 0 0 0.00% 0.00%
D 12965 10296 762 762 5.88% 7.40%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 5 16 103247 411.41 1230 1203 248.0
A 15 236 81066 321.98 1230 1203 248.0
A 0 226 11427 41.22 1230 1203 248.0
B 5 255 84352 355.27 1244 1221 234.0
B 0 214 73438 308.62 1244 1221 234.0
B 10 16 71497 300.33 1244 1221 234.0
C 13 61 9039 28.49 1197 1204 275.0
C 8 222 4771 12.97 1197 1204 275.0
C 14 67 3819 9.51 1197 1204 275.0
D 13 105 2364436 8544.81 1130 1102 276.6
D 13 169 260739 938.74 1130 1102 276.6
D 1 52 226266 814.1 1130 1102 276.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter