ASTROSAT CZTI

Data Quality Report

Orbit 09790

Creation date: 2024-06-27T15:50:42.213764
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/AS1G05_218T01_9000001394_09790cztM0_level2.evt modeM0/AS1G05_218T01_9000001394_09790cztM0_level2_quad_clean.evt
Size (bytes)185,342,40031,890,240
Size176.8 MB 30.4 MB
Events in quadrant A1,314,049194,937
Events in quadrant B1,371,585196,605
Events in quadrant C1,293,053184,237
Events in quadrant D1,430,975179,753

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016094
B0160110
C016092
D015994

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01593210016
B01625610218
C01604610153
D01724110986

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054
B066
C065
D042

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2914290.995196%
B2931351.194132%
C2891200.691802%
D2904341.170799%

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 8417 3968 0 0 0.00% 0.00%
B 8402 3988 0 0 0.00% 0.00%
C 8428 3959 0 0 0.00% 0.00%
D 8433 3969 7 7 0.08% 0.18%

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 13 253 3145 39.39 340 334 71.4
A 0 226 3002 37.38 340 334 71.4
A 12 194 2987 37.17 340 334 71.4
B 0 214 18334 263.95 343 335 68.2
B 4 239 8349 117.52 343 335 68.2
B 12 111 7408 103.72 343 335 68.2
C 9 54 5689 69.18 328 330 77.5
C 14 234 3459 40.39 328 330 77.5
C 13 61 2385 26.53 328 330 77.5
D 2 152 83173 983.81 327 319 84.2
D 1 52 40578 478.04 327 319 84.2
D 13 104 26681 313.02 327 319 84.2

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