ASTROSAT CZTI

Data Quality Report

Orbit 20260806_A14_106T01_9000006596_level2

Creation date: 2026-08-22T01:32:23.447332
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_106T01_9000006596cztM0_level2.fits modeM0/AS1A14_106T01_9000006596cztM0_level2_quad_clean.evt
Size (bytes)4,510,526,4002,103,984,000
Size4.2 GB 2.0 GB
Events in quadrant A26,077,7286,631,344
Events in quadrant B26,082,2058,246,961
Events in quadrant C27,355,1327,350,388
Events in quadrant D19,845,9494,357,417

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016415070
B013935740
C013129540
D025238950

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110000
B0109900
C0110080
D0110020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06730
B06720
C06710
D06730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5421047718714.238412%
B541994284035.240464%
C542065190303.510649%
D54088317707432.737949%

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 665294 532069 0 0 0.00% 0.00%
B 665294 543020 0 0 0.00% 0.00%
C 665295 542498 0 0 0.00% 0.00%
D 665295 537479 0 0 0.00% 0.00%

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 14 188 29936 10.27 6868 6309 2301.3
A 14 204 24852 8.06 6868 6309 2301.3
A 14 95 21963 6.8 6868 6309 2301.3
B 2 9 30258 14.87 6923 6535 1595.2
B 2 8 26534 12.54 6923 6535 1595.2
B 3 25 21874 9.62 6923 6535 1595.2
C 7 221 22545 6.3 7309 6618 2527.6
C 15 127 21905 6.05 7309 6618 2527.6
C 2 31 21774 6.0 7309 6618 2527.6
D 6 218 24669 10.44 5665 5021 1882.6
D 15 11 19887 7.9 5665 5021 1882.6
D 8 12 19077 7.47 5665 5021 1882.6

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

TCT plots

Parameter TCT0 TCT_healed
Tct