ASTROSAT CZTI

Data Quality Report

Orbit 58365

Creation date: 2026-07-12T06:11:09.043288
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_58365cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58365cztM0_level2_quad_clean.evt
Size (bytes)435,985,920104,057,280
Size415.8 MB 99.2 MB
Events in quadrant A3,325,957678,699
Events in quadrant B4,895,548723,963
Events in quadrant C3,782,690648,798
Events in quadrant D3,591,219612,736

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151532
B0195092
C0162852
D0157642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6990610.872675%
B69911972.817909%
C69911572.245745%
D69911001.430411%

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 9145 6992 39 39 0.43% 0.56%
B 9146 6992 73 73 0.80% 1.04%
C 9146 6993 120 120 1.31% 1.72%
D 9146 6993 94 94 1.03% 1.34%

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 2 143 99930 527.67 761 743 188.0
A 13 248 93237 492.07 761 743 188.0
A 8 246 64292 338.08 761 743 188.0
B 10 128 1502184 9259.84 753 725 162.1
B 4 201 57949 352.91 753 725 162.1
B 0 153 43731 265.23 753 725 162.1
C 4 5 464293 2269.84 742 735 204.2
C 14 245 209987 1024.61 742 735 204.2
C 12 252 65162 315.47 742 735 204.2
D 5 32 310814 1497.19 733 702 207.1
D 11 129 80406 384.8 733 702 207.1
D 2 31 69507 332.18 733 702 207.1

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