ASTROSAT CZTI

Data Quality Report

Orbit 58324

Creation date: 2026-07-09T12:03:11.574843
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_044T03_9000006588_58324cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58324cztM0_level2_quad_clean.evt
Size (bytes)12,533,7603,346,560
Size12.0 MB 3.2 MB
Events in quadrant A109,41619,953
Events in quadrant B118,22022,360
Events in quadrant C104,79917,024
Events in quadrant D108,39016,719

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1140320684902440140316581560366
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082
B095
C0104
D095

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0902396
B0955440
C0911431
D0898387

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A24810.403226%
B25110.398406%
C23610.423729%
D25300.000000%

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 340 269 1 1 0.29% 0.37%
B 315 273 0 0 0.00% 0.00%
C 298 260 0 0 0.00% 0.00%
D 309 282 0 0 0.00% 0.00%

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 7 160 4488 543.81 26 26 8.2
A 4 238 417 47.65 26 26 8.2
A 12 114 365 41.32 26 26 8.2
B 10 128 8052 1054.5 26 26 7.6
B 0 171 866 110.36 26 26 7.6
B 10 247 861 109.71 26 26 7.6
C 6 223 4023 480.79 24 23 8.3
C 14 246 2123 252.42 24 23 8.3
C 6 13 1395 164.91 24 23 8.3
D 11 129 3868 425.99 26 24 9.0
D 5 173 1603 174.98 26 24 9.0
D 15 234 1502 163.79 26 24 9.0

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