ASTROSAT CZTI

Data Quality Report

Orbit 59386

Creation date: 2026-09-18T23:08:03.921019
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_033T01_9000006608_59386cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59386cztM0_level2_quad_clean.evt
Size (bytes)369,362,88098,997,120
Size352.3 MB 94.4 MB
Events in quadrant A2,994,254646,598
Events in quadrant B3,374,543702,466
Events in quadrant C2,989,989625,109
Events in quadrant D3,810,628572,928

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135251
B0143891
C0135421
D0159001

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6460961.486068%
B64611271.965640%
C6461961.485838%
D64611973.049064%

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 7535 6460 8 8 0.11% 0.12%
B 7536 6461 18 18 0.24% 0.28%
C 7536 6461 22 22 0.29% 0.34%
D 7535 6460 102 102 1.35% 1.58%

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 3 245 58323 317.61 734 713 181.4
A 10 251 39116 211.72 734 713 181.4
A 14 238 33389 180.14 734 713 181.4
B 5 185 149280 963.27 724 695 154.2
B 4 236 114961 740.79 724 695 154.2
B 5 236 64105 411.09 724 695 154.2
C 6 223 79407 399.93 719 714 196.8
C 2 12 36303 180.87 719 714 196.8
C 4 5 19318 94.55 719 714 196.8
D 12 110 638556 3198.17 712 682 199.4
D 1 27 105865 527.37 712 682 199.4
D 3 12 60697 300.9 712 682 199.4

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

TCT plots

Parameter TCT0 TCT_healed
Tct