ASTROSAT CZTI

Data Quality Report

Orbit 04365

Creation date: 2024-06-27T14:40:57.959768
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/AS1G05_252T01_9000000544_04365cztM0_level2.evt modeM0/AS1G05_252T01_9000000544_04365cztM0_level2_quad_clean.evt
Size (bytes)856,546,560113,967,360
Size816.9 MB 108.7 MB
Events in quadrant A6,002,316673,362
Events in quadrant B5,529,192673,495
Events in quadrant C7,563,884644,856
Events in quadrant D6,042,080638,438

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0258513
B0245472
C0307712
D0265992

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02440
B02440
C02440
D02440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A11858850.716816%
B11858520.438523%
C118583082.597403%
D118581631.374599%

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 13328 11858 30 30 0.23% 0.25%
B 13328 11858 5 5 0.04% 0.04%
C 13328 11859 285 285 2.14% 2.40%
D 13328 11859 110 110 0.83% 0.93%

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 13 251 652261 2335.47 1354 1321 278.7
A 8 15 41840 145.38 1354 1321 278.7
A 15 234 38975 135.1 1354 1321 278.7
B 14 167 145382 546.91 1368 1335 263.4
B 0 183 32487 118.28 1368 1335 263.4
B 12 111 23020 82.33 1368 1335 263.4
C 9 247 2332995 7641.21 1295 1299 305.1
C 14 48 121354 393.43 1295 1299 305.1
C 12 4 41536 131.86 1295 1299 305.1
D 4 95 407764 1290.92 1295 1255 314.9
D 2 63 158291 498.69 1295 1255 314.9
D 2 136 155242 489.01 1295 1255 314.9

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