ASTROSAT CZTI

Data Quality Report

Orbit 09507

Creation date: 2024-06-27T15:47:00.669291
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_230T06_9000001350_09507cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09507cztM0_level2_quad_clean.evt
Size (bytes)250,804,80046,912,320
Size239.2 MB 44.7 MB
Events in quadrant A2,043,511281,778
Events in quadrant B1,774,136303,391
Events in quadrant C1,682,818304,044
Events in quadrant D1,855,322283,582

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171738869
B0141786772
C0139076570
D0150537460

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013764
B014157
C014062
D013757

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02210
B02211
C02310
D02214

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3283451.370698%
B3519451.278772%
C3538210.593556%
D3477471.351740%

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 9015 4257 0 0 0.00% 0.00%
B 9007 4463 0 0 0.00% 0.00%
C 8962 4485 0 0 0.00% 0.00%
D 9010 4441 14 14 0.16% 0.32%

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 8 5 248639 2925.63 414 408 84.8
A 1 162 94785 1112.32 414 408 84.8
A 1 178 39031 455.21 414 408 84.8
B 0 214 14400 166.16 445 436 84.0
B 0 187 10657 121.62 445 436 84.0
B 12 111 8918 100.93 445 436 84.0
C 13 61 3265 28.43 430 433 99.6
C 9 68 2009 15.82 430 433 99.6
C 1 0 1075 6.45 430 433 99.6
D 8 195 69675 669.7 422 415 103.4
D 12 233 60441 580.41 422 415 103.4
D 7 71 59665 572.91 422 415 103.4

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