ASTROSAT CZTI

Data Quality Report

Orbit 06304

Creation date: 2024-06-27T15:05:22.198261
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/AS1A02_070T01_9000000832_06304cztM0_level2.evt modeM0/AS1A02_070T01_9000000832_06304cztM0_level2_quad_clean.evt
Size (bytes)1,210,907,520119,877,120
Size1.1 GB 114.3 MB
Events in quadrant A6,577,499741,305
Events in quadrant B7,002,834747,055
Events in quadrant C5,222,091761,777
Events in quadrant D17,059,994547,572

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02440
B02440
C02440
D02440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267333
B0288882
C0243072
D0589952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A120121150.957376%
B120124193.488178%
C12012320.266400%
D12012378531.510157%

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 13337 12012 47 47 0.35% 0.39%
B 13337 12012 259 259 1.94% 2.16%
C 13337 12013 0 0 0.00% 0.00%
D 13337 12012 3581 3581 26.85% 29.81%

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 8 15 838145 2993.5 1363 1332 279.5
A 13 251 236828 842.43 1363 1332 279.5
A 8 50 125151 442.93 1363 1332 279.5
B 3 64 1318053 5032.25 1370 1336 261.7
B 0 219 304401 1158.26 1370 1336 261.7
B 4 81 51157 190.41 1370 1336 261.7
C 13 61 10552 29.72 1335 1340 309.9
C 9 54 5566 13.63 1335 1340 309.9
C 8 222 5487 13.38 1335 1340 309.9
D 2 63 10205187 35522.86 1171 1134 287.3
D 12 220 1170910 4072.28 1171 1134 287.3
D 12 110 645592 2243.52 1171 1134 287.3

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