ASTROSAT CZTI

Data Quality Report

Orbit 13620

Creation date: 2024-06-27T16:43:32.104128
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/AS1A04_212T03_9000002016_13620cztM0_level2.evt modeM0/AS1A04_212T03_9000002016_13620cztM0_level2_quad_clean.evt
Size (bytes)374,330,88061,637,760
Size357.0 MB 58.8 MB
Events in quadrant A2,353,950389,725
Events in quadrant B3,029,843393,108
Events in quadrant C2,402,390383,535
Events in quadrant D3,229,881368,890

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098352
B0119211
C098591
D0127811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4707481.019758%
B47071132.400680%
C4707210.446144%
D47071082.294455%

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 6078 4709 1 1 0.02% 0.02%
B 6078 4709 23 23 0.38% 0.49%
C 6078 4709 0 0 0.00% 0.00%
D 6078 4709 86 86 1.41% 1.83%

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 69 19609 157.36 603 591 120.9
A 1 162 10569 82.56 603 591 120.9
A 0 226 5390 39.71 603 591 120.9
B 0 219 411878 3704.77 599 585 111.0
B 3 64 84180 752.99 599 585 111.0
B 0 214 62213 555.12 599 585 111.0
C 3 233 134676 1011.28 580 584 132.6
C 13 61 4294 27.98 580 584 132.6
C 8 222 2022 10.84 580 584 132.6
D 5 222 450252 3237.92 580 564 138.9
D 8 195 331834 2385.27 580 564 138.9
D 13 122 134196 962.2 580 564 138.9

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