ASTROSAT CZTI

Data Quality Report

Orbit 44536

Creation date: 2024-06-27T23:03:54.766898
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/AS1A13_003T01_9000006002_44536cztM0_level2.fits modeM0/AS1A13_003T01_9000006002_44536cztM0_level2_quad_clean.evt
Size (bytes)483,480,000116,383,680
Size461.1 MB 111.0 MB
Events in quadrant A5,428,330776,420
Events in quadrant B3,648,463796,386
Events in quadrant C3,830,675758,490
Events in quadrant D4,434,402694,892

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224240
B0158070
C0161710
D0181601

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71501472.055944%
B7151791.104741%
C7151721.006852%
D71501622.265734%

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 7150 7150 68 68 0.95% 0.95%
B 7151 7151 26 26 0.36% 0.36%
C 7151 7151 56 56 0.78% 0.78%
D 7150 7150 147 147 2.06% 2.06%

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 10 83 1726726 10119.09 814 795 170.6
A 13 248 358174 2095.3 814 795 170.6
A 10 248 171347 999.94 814 795 170.6
B 5 235 237215 1465.87 808 782 161.3
B 0 155 44989 274.08 808 782 161.3
B 0 168 32859 198.88 808 782 161.3
C 14 254 441183 2342.1 792 796 188.0
C 3 233 216056 1144.81 792 796 188.0
C 2 14 38011 197.92 792 796 188.0
D 2 249 718051 3558.31 796 770 201.6
D 1 52 320678 1587.01 796 770 201.6
D 13 249 94900 466.96 796 770 201.6

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