ASTROSAT CZTI

Data Quality Report

Orbit 17224

Creation date: 2024-06-27T17:33:46.987873
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/AS1A05_185T04_9000002548_17224cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17224cztM0_level2_quad_clean.evt
Size (bytes)455,227,20092,304,000
Size434.1 MB 88.0 MB
Events in quadrant A3,059,689611,994
Events in quadrant B3,242,016612,812
Events in quadrant C3,860,697570,719
Events in quadrant D3,208,950572,956

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129912
B0135672
C0155422
D0135942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6114731.193981%
B6114721.177625%
C61141422.322538%
D6114841.373896%

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 7414 6115 0 0 0.00% 0.00%
B 7414 6115 1 1 0.01% 0.02%
C 7414 6115 0 0 0.00% 0.00%
D 7414 6115 25 25 0.34% 0.41%

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 0 226 7280 41.02 794 778 158.5
A 12 194 5933 32.53 794 778 158.5
A 3 137 5254 28.24 794 778 158.5
B 4 216 27812 182.17 792 773 148.4
B 6 36 26410 172.73 792 773 148.4
B 0 219 25546 166.91 792 773 148.4
C 3 233 788644 4466.42 757 763 176.4
C 14 238 118260 666.08 757 763 176.4
C 13 61 5379 26.17 757 763 176.4
D 5 222 85461 454.61 775 756 186.3
D 13 189 48088 254.03 775 756 186.3
D 10 70 39220 206.44 775 756 186.3

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