ASTROSAT CZTI

Data Quality Report

Orbit 42573

Creation date: 2024-06-27T22:41:46.918759
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/AS1C07_001T10_9000005814_42573cztM0_level2.fits modeM0/AS1C07_001T10_9000005814_42573cztM0_level2_quad_clean.evt
Size (bytes)337,631,04090,478,080
Size322.0 MB 86.3 MB
Events in quadrant A2,860,164608,349
Events in quadrant B2,509,020616,473
Events in quadrant C2,497,288596,616
Events in quadrant D4,204,773534,761

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118792
B0114072
C0110262
D0164922

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0340
C0340
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5476100.182615%
B5476280.511322%
C547640.073046%
D54762845.186267%

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 7269 5477 4 4 0.06% 0.07%
B 7269 5477 15 15 0.21% 0.27%
C 7269 5477 1 1 0.01% 0.02%
D 7269 5477 245 245 3.37% 4.47%

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 568743 4687.44 588 577 121.2
A 13 248 10307 80.27 588 577 121.2
A 13 254 6308 47.28 588 577 121.2
B 5 172 75123 659.48 586 569 113.0
B 0 245 70358 617.33 586 569 113.0
B 5 255 28335 245.61 586 569 113.0
C 15 214 226941 1690.66 573 576 133.9
C 7 220 26286 192.02 573 576 133.9
C 14 254 8702 60.69 573 576 133.9
D 2 16 629397 4560.83 561 543 137.9
D 12 6 444228 3217.87 561 543 137.9
D 1 52 330909 2396.02 561 543 137.9

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