ASTROSAT CZTI

Data Quality Report

Orbit 29971

Creation date: 2024-06-27T20:09:21.138859
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_053T06_9000004300_29971cztM0_level2.evt modeM0/AS1A10_053T06_9000004300_29971cztM0_level2_quad_clean.evt
Size (bytes)1,186,053,120172,203,840
Size1.1 GB 164.2 MB
Events in quadrant A5,874,8081,129,700
Events in quadrant B9,753,1671,115,381
Events in quadrant C12,244,0141,046,080
Events in quadrant D7,213,7611,068,334

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253853
B0379513
C0448683
D0293663

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02520
B02520
C02520
D02520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A123811000.807689%
B123812071.671917%
C12381181114.627251%
D123813522.843066%

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 13611 12383 2 2 0.01% 0.02%
B 13611 12383 5 5 0.04% 0.04%
C 13611 12383 932 932 6.85% 7.53%
D 13611 12383 232 232 1.70% 1.87%

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 43917 141.68 1493 1463 299.6
A 8 192 41779 134.55 1493 1463 299.6
A 13 254 23637 74.0 1493 1463 299.6
B 6 159 3643677 12861.08 1472 1431 283.2
B 6 36 272504 957.18 1472 1431 283.2
B 12 111 35132 119.0 1472 1431 283.2
C 3 233 6653058 20597.57 1373 1382 322.9
C 14 238 219481 675.36 1373 1382 322.9
C 2 114 27986 82.38 1373 1382 322.9
D 7 80 694987 2044.72 1433 1395 339.2
D 12 233 391323 1149.51 1433 1395 339.2
D 8 195 373636 1097.37 1433 1395 339.2

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