ASTROSAT CZTI

Data Quality Report

Orbit 59034

Creation date: 2026-08-27T23:08:08.696497
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_004T02_9000006600_59034cztM0_level2.fits modeM0/AS1A14_004T02_9000006600_59034cztM0_level2_quad_clean.evt
Size (bytes)742,213,44083,520,000
Size707.8 MB 79.7 MB
Events in quadrant A3,255,219638,061
Events in quadrant B4,006,583668,339
Events in quadrant C8,902,701424,624
Events in quadrant D10,818,257354,481

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139852
B0163182
C0307843
D0365482

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6346751.181847%
B63462694.238891%
C6345217034.200158%
D6345272842.994484%

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 7501 6347 36 36 0.48% 0.57%
B 7501 6347 172 172 2.29% 2.71%
C 7500 6346 1931 1931 25.75% 30.43%
D 7499 6345 2561 2561 34.15% 40.36%

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 0 24 185633 1070.79 701 684 172.7
A 3 14 124514 716.93 701 684 172.7
A 15 233 113097 650.83 701 684 172.7
B 2 249 868352 5843.13 693 667 148.5
B 4 236 225502 1514.07 693 667 148.5
B 5 185 57912 385.5 693 667 148.5
C 15 219 5350117 33091.48 586 582 161.7
C 4 5 452561 2795.88 586 582 161.7
C 15 198 431030 2662.69 586 582 161.7
D 12 1 7048575 45652.79 535 511 154.4
D 2 120 551299 3567.65 535 511 154.4
D 2 62 312285 2019.47 535 511 154.4

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