ASTROSAT CZTI

Data Quality Report

Orbit 47463

Creation date: 2024-07-08T05:24:16.890298
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/AS1A13_089T01_9000006330_47463cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47463cztM0_level2_quad_clean.evt
Size (bytes)785,727,36094,982,400
Size749.3 MB 90.6 MB
Events in quadrant A7,487,134717,010
Events in quadrant B3,336,522761,604
Events in quadrant C3,242,261727,565
Events in quadrant D14,487,330191,775

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0271122
B0147902
C0145152
D0477075

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68613124.547442%
B6861490.714182%
C6861190.276928%
D6860513574.854227%

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 7716 6863 136 136 1.76% 1.98%
B 7716 6863 10 10 0.13% 0.15%
C 7716 6863 2 2 0.03% 0.03%
D 7715 6862 4340 4340 56.25% 63.25%

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 10 83 3959136 25189.99 750 734 157.1
A 9 191 429438 2728.13 750 734 157.1
A 14 235 173653 1100.4 750 734 157.1
B 5 32 115663 757.35 767 744 151.7
B 0 190 71672 467.43 767 744 151.7
B 0 198 58463 380.38 767 744 151.7
C 3 233 249448 1381.38 753 756 180.0
C 0 207 31146 168.8 753 756 180.0
C 14 254 18527 98.71 753 756 180.0
D 2 165 10722063 83935.66 502 485 127.7
D 6 112 1623735 12707.88 502 485 127.7
D 2 249 59926 465.34 502 485 127.7

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