ASTROSAT CZTI

Data Quality Report

Orbit 13126

Creation date: 2024-06-27T16:36:39.116340
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/AS1G08_031T02_9000001934_13126cztM0_level2.evt modeM0/AS1G08_031T02_9000001934_13126cztM0_level2_quad_clean.evt
Size (bytes)479,727,360114,649,920
Size457.5 MB 109.3 MB
Events in quadrant A3,298,538760,716
Events in quadrant B4,169,368747,024
Events in quadrant C2,936,602787,724
Events in quadrant D3,692,774733,871

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141643
B0167422
C0131902
D0156952

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6343570.898628%
B63435658.907457%
C6343240.378370%
D63431041.639603%

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 7569 6345 23 23 0.30% 0.36%
B 7569 6345 266 266 3.51% 4.19%
C 7569 6345 0 0 0.00% 0.00%
D 7569 6345 74 74 0.98% 1.17%

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 4 2 284992 1879.94 751 735 151.2
A 12 189 80114 524.98 751 735 151.2
A 1 162 15714 99.06 751 735 151.2
B 4 239 1022855 7634.82 726 708 133.9
B 3 64 122658 910.89 726 708 133.9
B 0 85 70229 519.28 726 708 133.9
C 14 225 7338 38.54 750 753 170.9
C 13 61 5363 26.98 750 753 170.9
C 15 208 2654 11.13 750 753 170.9
D 1 52 817483 4738.84 727 706 172.4
D 10 157 91486 526.69 727 706 172.4
D 2 234 21715 121.89 727 706 172.4

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