ASTROSAT CZTI

Data Quality Report

Orbit 19162

Creation date: 2024-06-27T17:59:39.898946
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_046T01_9000002838_19162cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19162cztM0_level2_quad_clean.evt
Size (bytes)473,460,48084,988,800
Size451.5 MB 81.1 MB
Events in quadrant A3,243,277538,849
Events in quadrant B3,782,492551,773
Events in quadrant C3,618,427528,894
Events in quadrant D3,269,887517,654

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137362
B0152272
C0146662
D0138493

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6258701.118568%
B62582153.435602%
C62581221.949505%
D6257851.358479%

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 7473 6259 0 0 0.00% 0.00%
B 7473 6259 56 56 0.75% 0.89%
C 7473 6259 1 1 0.01% 0.02%
D 7472 6258 47 47 0.63% 0.75%

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 11 47 41924 244.93 828 812 167.8
A 15 174 12435 69.25 828 812 167.8
A 13 254 8339 44.84 828 812 167.8
B 3 112 304179 1950.66 826 810 155.5
B 7 220 192978 1235.64 826 810 155.5
B 0 197 33191 208.21 826 810 155.5
C 3 233 376512 2031.67 799 807 184.9
C 14 238 125445 673.99 799 807 184.9
C 13 61 5578 25.8 799 807 184.9
D 11 176 219669 1125.0 804 782 194.6
D 2 234 26401 131.67 804 782 194.6
D 14 226 7849 36.32 804 782 194.6

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