ASTROSAT CZTI

Data Quality Report

Orbit 56069

Creation date: 2026-02-09T15:54:43.586607
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_083T03_9000006548_56069cztM0_level2.fits modeM0/AS1A14_083T03_9000006548_56069cztM0_level2_quad_clean.evt
Size (bytes)416,963,520100,578,240
Size397.6 MB 95.9 MB
Events in quadrant A4,034,169656,742
Events in quadrant B3,344,020713,407
Events in quadrant C3,963,538623,924
Events in quadrant D3,563,292577,132

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166552
B0145592
C0167442
D0157422

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68051361.998530%
B68061011.483985%
C68062093.070820%
D68062303.379371%

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 7895 6805 80 80 1.01% 1.18%
B 7896 6806 33 33 0.42% 0.48%
C 7896 6806 157 157 1.99% 2.31%
D 7896 6806 137 137 1.74% 2.01%

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 12 115 418237 2295.93 739 722 181.8
A 15 32 352275 1933.2 739 722 181.8
A 0 8 241197 1322.38 739 722 181.8
B 9 254 115942 741.38 731 707 155.4
B 0 171 105188 672.19 731 707 155.4
B 10 247 67119 427.27 731 707 155.4
C 13 3 763120 3932.9 707 700 193.9
C 12 249 82250 420.67 707 700 193.9
C 15 147 76673 391.9 707 700 193.9
D 11 129 506908 2537.94 705 673 199.5
D 2 120 102141 508.7 705 673 199.5
D 5 173 57120 282.99 705 673 199.5

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