ASTROSAT CZTI

Data Quality Report

Orbit 45530

Creation date: 2024-06-27T23:13:16.333157
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_071T01_9000006104_45530cztM0_level2.fits modeM0/AS1A13_071T01_9000006104_45530cztM0_level2_quad_clean.evt
Size (bytes)532,440,000113,034,240
Size507.8 MB 107.8 MB
Events in quadrant A6,256,037766,245
Events in quadrant B4,572,446751,531
Events in quadrant C3,672,196755,492
Events in quadrant D4,679,513673,944

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233962
B0183422
C0158452
D0186822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68183054.473453%
B68186399.372250%
C68192463.607567%
D68193495.118053%

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 7918 6819 61 61 0.77% 0.89%
B 7918 6819 394 394 4.98% 5.78%
C 7919 6819 147 147 1.86% 2.16%
D 7919 6819 194 194 2.45% 2.84%

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 2676908 16583.74 781 766 161.4
A 13 248 558415 3455.69 781 766 161.4
A 3 137 8745 49.44 781 766 161.4
B 15 201 1485284 10163.6 751 728 146.1
B 0 155 49593 334.54 751 728 146.1
B 5 172 38118 255.98 751 728 146.1
C 12 2 378847 2126.82 759 763 177.8
C 14 254 320747 1799.99 759 763 177.8
C 12 249 7282 36.67 759 763 177.8
D 13 249 889679 4709.03 754 733 188.8
D 5 171 317319 1677.06 754 733 188.8
D 1 52 272635 1440.35 754 733 188.8

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