ASTROSAT CZTI

Data Quality Report

Orbit 45602

Creation date: 2024-06-27T23:14:05.468829
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_082T02_9000006112_45602cztM0_level2.fits modeM0/AS1A13_082T02_9000006112_45602cztM0_level2_quad_clean.evt
Size (bytes)485,098,560115,277,760
Size462.6 MB 109.9 MB
Events in quadrant A5,965,269760,173
Events in quadrant B3,603,904804,303
Events in quadrant C3,309,577761,884
Events in quadrant D4,544,348685,628

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223672
B0153672
C0147712
D0178892

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68762683.897615%
B68761782.588714%
C68761041.512507%
D68762103.054101%

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 7921 6876 14 14 0.18% 0.20%
B 7921 6876 56 56 0.71% 0.81%
C 7921 6877 35 35 0.44% 0.51%
D 7921 6877 141 141 1.78% 2.05%

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 2793160 17092.86 788 770 163.4
A 13 248 107409 652.76 788 770 163.4
A 7 191 20282 119.44 788 770 163.4
B 5 172 219092 1412.67 787 762 154.6
B 15 201 215899 1392.01 787 762 154.6
B 12 111 19559 121.62 787 762 154.6
C 14 254 282318 1551.24 773 775 181.5
C 13 61 5109 23.88 773 775 181.5
C 3 233 4987 23.21 773 775 181.5
D 11 241 464219 2441.39 768 745 189.8
D 1 52 279608 1468.93 768 745 189.8
D 13 249 227364 1193.73 768 745 189.8

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