ASTROSAT CZTI

Data Quality Report

Orbit 32352

Creation date: 2024-06-27T20:39:14.520874
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/AS1A09_131T01_9000004702_32352cztM0_level2.evt modeM0/AS1A09_131T01_9000004702_32352cztM0_level2_quad_clean.evt
Size (bytes)396,043,20083,059,200
Size377.7 MB 79.2 MB
Events in quadrant A2,224,594570,582
Events in quadrant B3,620,690572,554
Events in quadrant C2,671,146546,188
Events in quadrant D3,198,127535,882

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093892
B0139071
C0107141
D0121641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4107701.704407%
B41072556.208912%
C410743810.664719%
D41072516.111517%

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 5427 4108 0 0 0.00% 0.00%
B 5427 4108 70 70 1.29% 1.70%
C 5427 4108 43 43 0.79% 1.05%
D 5427 4108 152 152 2.80% 3.70%

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 12 189 179990 1696.64 526 517 105.8
A 13 6 10672 96.0 526 517 105.8
A 13 254 8368 74.22 526 517 105.8
B 6 159 1226411 12601.22 520 509 97.3
B 5 172 241317 2475.3 520 509 97.3
B 0 190 31164 315.11 520 509 97.3
C 0 10 309924 2747.58 487 491 112.6
C 14 238 159403 1411.04 487 491 112.6
C 14 254 116630 1031.25 487 491 112.6
D 8 195 591317 5049.2 503 492 117.0
D 13 249 260374 2220.96 503 492 117.0
D 7 38 159434 1358.32 503 492 117.0

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