ASTROSAT CZTI

Data Quality Report

Orbit 52292

Creation date: 2025-07-22T11:44:12.607911
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/AS1C09_011T05_9000006474_52292cztM0_level2.fits modeM0/AS1C09_011T05_9000006474_52292cztM0_level2_quad_clean.evt
Size (bytes)843,232,32076,006,080
Size804.2 MB 72.5 MB
Events in quadrant A3,218,533722,306
Events in quadrant B4,256,850690,509
Events in quadrant C13,265,604113,959
Events in quadrant D10,000,438348,854

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140501
B0168691
C0435926
D0338711

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60951131.853979%
B60962133.494094%
C6095525986.283839%
D6095238939.196062%

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 7195 6095 35 35 0.49% 0.57%
B 7196 6097 107 107 1.49% 1.75%
C 7194 6094 4240 4240 58.94% 69.58%
D 7195 6095 2262 2262 31.44% 37.11%

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 3 66399 345.17 692 675 190.4
A 13 248 63277 328.77 692 675 190.4
A 5 240 62010 322.12 692 675 190.4
B 7 0 583836 4155.95 648 628 140.3
B 10 254 313271 2227.9 648 628 140.3
B 4 171 181368 1287.96 648 628 140.3
C 15 178 4952559 63165.87 256 252 78.4
C 0 161 1974995 25187.53 256 252 78.4
C 15 158 1826598 23294.75 256 252 78.4
D 15 93 5491150 34192.28 524 499 160.6
D 12 1 938125 5838.94 524 499 160.6
D 8 176 577964 3596.09 524 499 160.6

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