ASTROSAT CZTI

Data Quality Report

Orbit 53958

Creation date: 2025-09-18T18:58:43.536174
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_057T04_9000006508_53958cztM0_level2.fits modeM0/AS1A14_057T04_9000006508_53958cztM0_level2_quad_clean.evt
Size (bytes)433,575,36055,327,680
Size413.5 MB 52.8 MB
Events in quadrant A2,977,318388,873
Events in quadrant B2,404,132421,718
Events in quadrant C2,974,477363,462
Events in quadrant D7,359,894199,563

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011843132
B010298122
C012051135
D025375578

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0871
B0871
C0882
D0871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1139913130149928139912854634542
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42882916.786381%
B42841864.341737%
C42883377.859142%
D4271210249.215640%

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 4305 4300 134 134 3.11% 3.12%
B 4313 4297 28 28 0.65% 0.65%
C 4303 4299 202 202 4.69% 4.70%
D 4293 4284 1663 1663 38.74% 38.82%

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 15 174 376087 3151.82 477 463 119.2
A 0 8 326632 2736.85 477 463 119.2
A 8 249 107918 901.64 477 463 119.2
B 8 234 118843 1158.54 471 453 102.2
B 0 213 107921 1051.66 471 453 102.2
B 0 155 107123 1043.85 471 453 102.2
C 1 241 555262 4486.13 448 443 123.7
C 13 3 159497 1286.07 448 443 123.7
C 9 38 142554 1149.08 448 443 123.7
D 8 176 4704782 49878.81 330 315 94.3
D 6 239 706932 7491.86 330 315 94.3
D 3 12 180670 1912.2 330 315 94.3

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