ASTROSAT CZTI

Data Quality Report

Orbit 42569

Creation date: 2024-06-27T22:41:44.258139
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/AS1C07_001T10_9000005814_42569cztM0_level2.fits modeM0/AS1C07_001T10_9000005814_42569cztM0_level2_quad_clean.evt
Size (bytes)660,568,320168,488,640
Size630.0 MB 160.7 MB
Events in quadrant A5,686,8141,137,200
Events in quadrant B4,806,3301,143,191
Events in quadrant C4,942,6501,108,698
Events in quadrant D8,188,250973,302

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235983
B0220893
C0218673
D0318293

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02160
B02160
C02160
D02160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10673520.487211%
B10673590.552797%
C10673110.103064%
D106738628.076455%

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 13448 10675 24 24 0.18% 0.22%
B 13448 10675 34 34 0.25% 0.32%
C 13448 10675 1 1 0.01% 0.01%
D 13448 10675 745 745 5.54% 6.98%

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 10 83 1070937 4592.2 1139 1115 233.0
A 2 79 122584 521.4 1139 1115 233.0
A 15 237 38224 159.29 1139 1115 233.0
B 5 172 170103 774.09 1131 1100 218.3
B 0 245 110528 501.22 1131 1100 218.3
B 12 111 27654 121.62 1131 1100 218.3
C 15 214 438647 1692.03 1114 1119 258.6
C 3 233 68004 258.66 1114 1119 258.6
C 12 175 64914 246.71 1114 1119 258.6
D 12 6 1161268 4400.16 1086 1057 263.7
D 13 138 994502 3767.69 1086 1057 263.7
D 2 16 577428 2185.92 1086 1057 263.7

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