ASTROSAT CZTI

Data Quality Report

Orbit 53206

Creation date: 2025-07-30T02:58:18.562605
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/AS1C09_011T06_9000006490_53206cztM0_level2.fits modeM0/AS1C09_011T06_9000006490_53206cztM0_level2_quad_clean.evt
Size (bytes)894,908,16068,146,560
Size853.5 MB 65.0 MB
Events in quadrant A3,775,259587,375
Events in quadrant B3,284,887643,719
Events in quadrant C11,602,086180,408
Events in quadrant D13,980,390215,154

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159651
B0141651
C0388091
D0458321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62462994.787064%
B6246520.832533%
C6246459273.519052%
D6246421267.435159%

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 7271 6247 210 210 2.89% 3.36%
B 7271 6247 20 20 0.28% 0.32%
C 7271 6247 3232 3232 44.45% 51.74%
D 7271 6247 4377 4377 60.20% 70.07%

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 505317 3093.38 640 623 163.2
A 0 8 318421 1947.85 640 623 163.2
A 3 62 182865 1117.0 640 623 163.2
B 4 81 157382 1137.06 647 624 137.9
B 0 213 139549 1007.71 647 624 137.9
B 10 247 94778 682.96 647 624 137.9
C 15 165 9184515 109943.15 298 295 83.5
C 15 224 578162 6917.57 298 295 83.5
C 4 5 285604 3415.4 298 295 83.5
D 15 125 8630981 69366.24 431 410 124.4
D 8 176 1906739 15321.68 431 410 124.4
D 10 172 800412 6429.83 431 410 124.4

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