ASTROSAT CZTI

Data Quality Report

Orbit 30672

Creation date: 2024-06-27T20:18:24.955703
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/AS1A10_094T79_9000004422_30672cztM0_level2.evt modeM0/AS1A10_094T79_9000004422_30672cztM0_level2_quad_clean.evt
Size (bytes)471,758,40088,323,840
Size449.9 MB 84.2 MB
Events in quadrant A2,153,341626,499
Events in quadrant B3,125,742624,378
Events in quadrant C2,176,871607,898
Events in quadrant D6,572,872545,868

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087950
B0118840
C089100
D0221820

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3822180.470958%
B3823210.549307%
C38231082.825007%
D382394824.797280%

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 3822 3822 16 16 0.42% 0.42%
B 3823 3823 4 4 0.10% 0.10%
C 3823 3823 0 0 0.00% 0.00%
D 3823 3823 1264 1264 33.06% 33.06%

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 13 126891 1209.79 524 517 104.5
A 13 254 6767 59.83 524 517 104.5
A 0 226 4613 39.21 524 517 104.5
B 6 159 1063294 11354.36 509 499 93.6
B 4 81 40202 424.17 509 499 93.6
B 0 229 20464 213.3 509 499 93.6
C 14 238 120450 1041.1 501 506 115.2
C 14 254 53375 458.9 501 506 115.2
C 3 233 29053 247.79 501 506 115.2
D 8 195 3794993 33153.46 490 480 114.5
D 12 218 421882 3681.88 490 480 114.5
D 12 79 263082 2294.41 490 480 114.5

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