ASTROSAT CZTI

Data Quality Report

Orbit 59284

Creation date: 2026-09-12T02:19:08.587399
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/AS1A14_021T06_9000006606_59284cztM0_level2.fits modeM0/AS1A14_021T06_9000006606_59284cztM0_level2_quad_clean.evt
Size (bytes)618,756,48084,044,160
Size590.1 MB 80.2 MB
Events in quadrant A3,706,933600,840
Events in quadrant B3,095,347673,128
Events in quadrant C3,899,105576,551
Events in quadrant D11,728,066267,577

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155161
B0135761
C0159762
D0391011

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61112704.418262%
B61111071.750941%
C61103085.040917%
D6111355058.091965%

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 7301 6112 217 217 2.97% 3.55%
B 7301 6112 32 32 0.44% 0.52%
C 7300 6111 262 262 3.59% 4.29%
D 7301 6112 3165 3165 43.35% 51.78%

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 7 64 991438 6235.9 643 629 158.9
A 10 251 114154 714.5 643 629 158.9
A 15 16 32076 197.92 643 629 158.9
B 6 255 194986 1386.17 654 629 140.2
B 4 236 130872 928.9 654 629 140.2
B 5 185 45900 322.88 654 629 140.2
C 12 252 761957 4321.26 640 633 176.2
C 15 198 334356 1894.21 640 633 176.2
C 14 96 124042 700.47 640 633 176.2
D 12 110 8759147 57853.26 521 498 151.4
D 2 249 208274 1372.42 521 498 151.4
D 12 2 200774 1322.88 521 498 151.4

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

TCT plots

Parameter TCT0 TCT_healed
Tct