ASTROSAT CZTI

Data Quality Report

Orbit 29693

Creation date: 2024-06-27T20:06:55.063108
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_093T01_9000004274_29693cztM0_level2.evt modeM0/AS1A10_093T01_9000004274_29693cztM0_level2_quad_clean.evt
Size (bytes)373,046,40051,007,680
Size355.8 MB 48.6 MB
Events in quadrant A1,849,724335,737
Events in quadrant B3,159,629326,861
Events in quadrant C2,848,950301,055
Events in quadrant D3,162,026292,739

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0884
B0882
C0884
D0886

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08792458
B013374977
C0122731061
D0132001066

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A412010.024272%
B4055330.813810%
C40541834.514060%
D40551664.093711%

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 4352 4236 1 1 0.02% 0.02%
B 4351 4156 17 17 0.39% 0.41%
C 4352 4152 51 51 1.17% 1.23%
D 4352 4157 173 173 3.98% 4.16%

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 16 35641 367.59 468 457 95.7
A 12 194 8703 86.15 468 457 95.7
A 13 254 8485 83.87 468 457 95.7
B 6 159 1197818 13524.42 455 444 88.5
B 0 229 98001 1101.91 455 444 88.5
B 0 190 31159 346.93 455 444 88.5
C 3 233 769574 7559.12 432 434 101.7
C 10 22 207663 2036.65 432 434 101.7
C 14 238 115820 1134.02 432 434 101.7
D 7 80 534375 5066.41 437 424 105.4
D 8 195 482893 4577.92 437 424 105.4
D 13 189 243119 2302.82 437 424 105.4

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