ASTROSAT CZTI

Data Quality Report

Orbit 42803

Creation date: 2024-06-27T22:44:26.216660
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/AS1C06_010T01_9000005824_42803cztM0_level2.fits modeM0/AS1C06_010T01_9000005824_42803cztM0_level2_quad_clean.evt
Size (bytes)379,696,32084,231,360
Size362.1 MB 80.3 MB
Events in quadrant A2,834,656584,968
Events in quadrant B4,199,897530,536
Events in quadrant C2,900,632556,220
Events in quadrant D3,714,447513,559

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116641
B0159861
C0119621
D0147881

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5210180.345489%
B521165612.588755%
C5211190.364613%
D52111853.550182%

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 6914 5211 8 8 0.12% 0.15%
B 6915 5211 640 640 9.26% 12.28%
C 6915 5212 12 12 0.17% 0.23%
D 6915 5212 164 164 2.37% 3.15%

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 570075 4910.13 565 554 116.0
A 15 223 36165 307.02 565 554 116.0
A 12 189 15854 131.91 565 554 116.0
B 0 229 1933717 19599.21 520 507 98.6
B 0 245 66755 671.63 520 507 98.6
B 5 172 50329 505.1 520 507 98.6
C 3 233 478030 3678.08 551 553 129.8
C 15 214 209551 1609.94 551 553 129.8
C 14 254 49876 379.94 551 553 129.8
D 1 52 889421 6625.69 548 531 134.2
D 10 118 195582 1453.89 548 531 134.2
D 13 249 145071 1077.39 548 531 134.2

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