ASTROSAT CZTI

Data Quality Report

Orbit 30313

Creation date: 2024-06-27T20:13:33.872116
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/AS1A10_071T20_9000004354_30313cztM0_level2.evt modeM0/AS1A10_071T20_9000004354_30313cztM0_level2_quad_clean.evt
Size (bytes)555,252,48090,406,080
Size529.5 MB 86.2 MB
Events in quadrant A3,361,212580,642
Events in quadrant B5,690,851583,176
Events in quadrant C3,776,874556,339
Events in quadrant D3,530,701547,885

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141832
B0216032
C0152622
D0149232

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6739610.905179%
B67402153.189911%
C67401712.537092%
D6740610.905045%

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 9079 6741 0 0 0.00% 0.00%
B 9080 6742 48 48 0.53% 0.71%
C 9080 6742 8 8 0.09% 0.12%
D 9080 6742 34 34 0.37% 0.50%

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 14 239 44340 254.37 854 837 171.0
A 8 192 22358 125.84 854 837 171.0
A 13 254 11356 61.51 854 837 171.0
B 6 159 1876227 11521.13 847 825 162.8
B 6 36 476699 2923.43 847 825 162.8
B 12 111 20369 120.06 847 825 162.8
C 3 233 421454 2197.8 817 823 191.4
C 14 238 136772 710.33 817 823 191.4
C 0 10 16520 82.02 817 823 191.4
D 8 195 142301 675.73 813 796 209.4
D 13 249 82225 388.85 813 796 209.4
D 5 222 64104 302.31 813 796 209.4

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