ASTROSAT CZTI

Data Quality Report

Orbit 39293

Creation date: 2024-06-27T22:02:49.482301
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/AS1A12_037T03_9000005460_39293cztM0_level2.fits modeM0/AS1A12_037T03_9000005460_39293cztM0_level2_quad_clean.evt
Size (bytes)281,868,48033,871,680
Size268.8 MB 32.3 MB
Events in quadrant A2,108,332267,081
Events in quadrant B1,238,809273,721
Events in quadrant C1,172,401261,297
Events in quadrant D5,722,02147,517

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080201
B053431
C049401
D0187091

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1139995604260904139994459013166
B1-1-1
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2447602.451982%
B2447120.490396%
C244730.122599%
D2447205183.816919%

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 2447 2447 30 30 1.23% 1.23%
B 2447 2447 1 1 0.04% 0.04%
C 2447 2447 0 0 0.00% 0.00%
D 2446 2446 1664 1664 68.03% 68.03%

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 15 222 793007 13713.77 275 269 57.8
A 10 83 205096 3543.35 275 269 57.8
A 13 248 43534 748.45 275 269 57.8
B 5 172 142015 2566.04 274 267 55.2
B 0 190 8349 146.31 274 267 55.2
B 12 111 6779 117.89 274 267 55.2
C 15 214 103854 1587.62 271 272 65.2
C 9 187 5554 80.96 271 272 65.2
C 0 10 2765 38.21 271 272 65.2
D 12 235 4958684 129618.24 146 141 38.3
D 12 227 107087 2795.61 146 141 38.3
D 2 250 66359 1730.96 146 141 38.3

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