ASTROSAT CZTI

Data Quality Report

Orbit 10351

Creation date: 2024-06-27T15:58:14.072320
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/AS1C02_038T02_9000001490_10351cztM0_level2.evt modeM0/AS1C02_038T02_9000001490_10351cztM0_level2_quad_clean.evt
Size (bytes)765,567,360115,237,440
Size730.1 MB 109.9 MB
Events in quadrant A4,885,873693,305
Events in quadrant B5,564,391669,257
Events in quadrant C4,881,156692,810
Events in quadrant D7,148,922714,553

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0309
B03110
C03110
D0287

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0374149
B0374154
C0374151
D0364140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03674315649
B04287520183
C03804016824
D04602817678

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A102801951.896887%
B99684014.022873%
C102881461.419129%
D109663082.808681%

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 13602 11241 0 0 0.00% 0.00%
B 13602 11012 161 161 1.18% 1.46%
C 13601 11224 10 10 0.07% 0.09%
D 13602 11324 147 147 1.08% 1.30%

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 3 1 11872 41.82 1265 1238 254.3
A 0 226 11482 40.29 1265 1238 254.3
A 12 194 10541 36.59 1265 1238 254.3
B 4 239 634586 2790.78 1208 1178 227.0
B 11 51 108658 473.55 1208 1178 227.0
B 0 219 53995 232.71 1208 1178 227.0
C 14 234 47714 164.21 1234 1242 283.0
C 4 175 22365 74.64 1234 1242 283.0
C 13 61 9122 27.84 1234 1242 283.0
D 1 52 1032393 3335.69 1305 1269 309.1
D 8 195 510126 1646.15 1305 1269 309.1
D 2 33 224420 721.89 1305 1269 309.1

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