ASTROSAT CZTI

Data Quality Report

Orbit 48043

Creation date: 2024-08-19T08:56:38.086449
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_037T05_9000006392_48043cztM0_level2.fits modeM0/AS1A13_037T05_9000006392_48043cztM0_level2_quad_clean.evt
Size (bytes)508,291,200114,629,760
Size484.7 MB 109.3 MB
Events in quadrant A7,429,995748,295
Events in quadrant B3,662,141790,326
Events in quadrant C3,115,298756,540
Events in quadrant D4,059,665684,025

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267572
B0159022
C0145633
D0171762

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70663254.599491%
B70671622.292345%
C7066150.212284%
D70661271.797339%

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 9111 7068 113 113 1.24% 1.60%
B 9112 7069 76 76 0.83% 1.08%
C 9111 7068 0 0 0.00% 0.00%
D 9111 7068 91 91 1.00% 1.29%

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 4319881 26219.49 788 770 164.7
A 7 3 39482 235.0 788 770 164.7
A 13 254 12538 71.44 788 770 164.7
B 5 255 287189 1830.67 795 771 156.5
B 7 221 86669 549.03 795 771 156.5
B 4 158 34657 216.59 795 771 156.5
C 12 2 20015 102.97 786 788 186.7
C 14 254 11300 56.3 786 788 186.7
C 15 208 8884 43.36 786 788 186.7
D 2 249 286945 1469.98 775 751 194.7
D 5 222 233949 1197.78 775 751 194.7
D 11 192 131492 671.53 775 751 194.7

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