ASTROSAT CZTI

Data Quality Report

Orbit 29320

Creation date: 2024-06-27T20:02:41.306986
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/AS1A10_050T03_9000004216_29320cztM0_level2.evt modeM0/AS1A10_050T03_9000004216_29320cztM0_level2_quad_clean.evt
Size (bytes)892,535,040142,450,560
Size851.2 MB 135.9 MB
Events in quadrant A5,129,840917,952
Events in quadrant B5,341,229924,441
Events in quadrant C6,435,271889,615
Events in quadrant D9,419,402859,569

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02100
B02100
C02100
D02100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218812
B0226292
C0257022
D0350592

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A104371341.283894%
B104371391.331800%
C104372862.740251%
D104387387.070320%

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 10892 10438 55 55 0.50% 0.53%
B 10892 10438 12 12 0.11% 0.11%
C 10892 10438 3 3 0.03% 0.03%
D 10893 10439 521 521 4.78% 4.99%

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 15 174 181020 711.81 1253 1228 252.6
A 1 113 53941 208.7 1253 1228 252.6
A 14 235 48185 185.91 1253 1228 252.6
B 10 245 198368 822.81 1248 1217 239.6
B 0 190 107760 444.66 1248 1217 239.6
B 3 209 50314 204.91 1248 1217 239.6
C 3 233 1363238 4800.84 1202 1208 283.7
C 14 238 213278 747.5 1202 1208 283.7
C 7 247 42586 145.85 1202 1208 283.7
D 1 52 2926487 10168.47 1195 1163 287.7
D 8 195 1290258 4480.91 1195 1163 287.7
D 7 80 204747 707.66 1195 1163 287.7

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