ASTROSAT CZTI

Data Quality Report

Orbit 58323

Creation date: 2026-07-09T11:39:17.102386
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_58323cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58323cztM0_level2_quad_clean.evt
Size (bytes)486,385,92093,323,520
Size463.9 MB 89.0 MB
Events in quadrant A3,364,327637,427
Events in quadrant B7,741,673550,577
Events in quadrant C2,999,635619,178
Events in quadrant D3,403,357573,948

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143401
B0274601
C0134081
D0145591

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6372731.145637%
B6372157624.733208%
C6372190.298180%
D6373741.161149%

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 7597 6373 50 50 0.66% 0.78%
B 7597 6373 1188 1188 15.64% 18.64%
C 7597 6373 21 21 0.28% 0.33%
D 7598 6374 76 76 1.00% 1.19%

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 12 114 159356 896.08 713 695 177.1
A 13 248 101893 571.54 713 695 177.1
A 10 251 83110 465.46 713 695 177.1
B 10 128 3705498 27171.01 638 616 136.4
B 2 249 755152 5533.65 638 616 136.4
B 5 185 397591 2911.35 638 616 136.4
C 6 223 115319 599.06 692 685 191.4
C 6 13 52960 273.18 692 685 191.4
C 11 244 36396 186.62 692 685 191.4
D 11 176 374679 1920.01 683 652 194.8
D 11 129 228515 1169.7 683 652 194.8
D 3 12 49990 253.27 683 652 194.8

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