ASTROSAT CZTI

Data Quality Report

Orbit 46967

Creation date: 2024-06-27T23:30:03.866135
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_071T07_9000006290_46967cztM0_level2.fits modeM0/AS1A13_071T07_9000006290_46967cztM0_level2_quad_clean.evt
Size (bytes)1,354,613,760245,877,120
Size1.3 GB 234.5 MB
Events in quadrant A14,824,5751,662,718
Events in quadrant B16,008,6581,597,321
Events in quadrant C7,166,1181,652,442
Events in quadrant D10,961,8541,473,806

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03100
B03100
C03100
D03100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0545796
B0583748
C0328853
D0435033

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A153334502.934846%
B15333188312.280702%
C153351530.997718%
D153358625.621128%

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 31309 15336 64 64 0.20% 0.42%
B 31310 15336 1312 1312 4.19% 8.56%
C 31310 15338 30 30 0.10% 0.20%
D 31310 15338 677 677 2.16% 4.41%

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 8007876 23001.0 1692 1655 348.1
A 14 248 175815 500.34 1692 1655 348.1
A 9 191 41946 115.75 1692 1655 348.1
B 3 112 8118703 25664.47 1638 1586 316.3
B 5 255 690329 2177.65 1638 1586 316.3
B 0 190 132821 414.94 1638 1586 316.3
C 15 208 288907 751.27 1660 1666 382.3
C 1 3 239199 621.26 1660 1666 382.3
C 0 207 61483 156.45 1660 1666 382.3
D 1 52 2281991 5623.4 1641 1585 405.5
D 13 249 1360715 3351.57 1641 1585 405.5
D 13 112 237207 581.03 1641 1585 405.5

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