ASTROSAT CZTI

Data Quality Report

Orbit 32734

Creation date: 2024-06-27T20:41:23.347787
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/AS1A10_123T04_9000004726_32734cztM0_level2.evt modeM0/AS1A10_123T04_9000004726_32734cztM0_level2_quad_clean.evt
Size (bytes)473,520,96061,266,240
Size451.6 MB 58.4 MB
Events in quadrant A3,044,465362,812
Events in quadrant B3,158,613362,551
Events in quadrant C2,840,687365,949
Events in quadrant D4,892,226346,977

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129183
B0131022
C0123822
D0186722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59661422.380154%
B5966440.737513%
C5966300.502849%
D59662694.508884%

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 7278 5967 115 115 1.58% 1.93%
B 7278 5967 23 23 0.32% 0.39%
C 7278 5967 20 20 0.27% 0.34%
D 7278 5967 221 221 3.04% 3.70%

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 15 249 269191 1898.48 697 683 141.4
A 15 237 78547 550.54 697 683 141.4
A 13 254 11323 75.23 697 683 141.4
B 3 26 152282 1141.96 698 682 132.8
B 5 172 80051 597.86 698 682 132.8
B 0 199 53703 399.39 698 682 132.8
C 0 10 81045 508.81 678 684 157.9
C 9 54 45223 282.0 678 684 157.9
C 7 247 12427 74.35 678 684 157.9
D 8 195 669764 4229.07 665 651 158.2
D 2 250 363594 2293.95 665 651 158.2
D 12 233 241617 1523.01 665 651 158.2

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