ASTROSAT CZTI

Data Quality Report

Orbit 58410

Creation date: 2026-07-15T07:14:58.063997
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_045T01_9000006590_58410cztM0_level2.fits modeM0/AS1A14_045T01_9000006590_58410cztM0_level2_quad_clean.evt
Size (bytes)709,623,36086,627,520
Size676.7 MB 82.6 MB
Events in quadrant A4,882,215665,848
Events in quadrant B13,659,533227,053
Events in quadrant C3,688,223653,859
Events in quadrant D3,517,371609,681

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0191392
B0451782
C0154312
D0150513

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66972954.404957%
B6697503575.182918%
C6697981.463342%
D6696901.344086%

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 7872 6698 156 156 1.98% 2.33%
B 7872 6696 3537 3537 44.93% 52.82%
C 7872 6698 50 50 0.64% 0.75%
D 7871 6697 41 41 0.52% 0.61%

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 3 14 1178939 6272.32 759 740 187.8
A 12 114 425079 2259.03 759 740 187.8
A 10 251 62368 328.09 759 740 187.8
B 6 255 11075529 115785.22 441 425 95.7
B 5 172 541341 5655.03 441 425 95.7
B 4 158 127391 1327.37 441 425 95.7
C 5 10 247573 1204.31 744 738 205.0
C 9 38 205051 996.85 744 738 205.0
C 13 16 79801 385.75 744 738 205.0
D 8 240 347573 1668.98 733 700 207.8
D 3 12 64348 306.24 733 700 207.8
D 11 129 58090 276.13 733 700 207.8

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