ASTROSAT CZTI

Data Quality Report

Orbit 31003

Creation date: 2024-06-27T20:22:09.355949
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_071T48_9000004478_31003cztM0_level2.evt modeM0/AS1A10_071T48_9000004478_31003cztM0_level2_quad_clean.evt
Size (bytes)566,262,72098,184,960
Size540.0 MB 93.6 MB
Events in quadrant A3,265,752656,377
Events in quadrant B5,380,027652,704
Events in quadrant C4,076,464610,417
Events in quadrant D3,989,009602,770

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139392
B0205702
C0163352
D0161282

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6473470.726093%
B64731342.070137%
C64733325.128997%
D64731802.780782%

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 7683 6474 0 0 0.00% 0.00%
B 7683 6473 10 10 0.13% 0.15%
C 7683 6473 159 159 2.07% 2.46%
D 7683 6475 126 126 1.64% 1.95%

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 13 254 12023 65.98 846 829 169.6
A 3 137 7982 42.16 846 829 169.6
A 0 226 7231 37.74 846 829 169.6
B 6 159 1903866 12084.41 834 816 157.5
B 0 155 85943 540.56 834 816 157.5
B 0 190 43176 268.99 834 816 157.5
C 0 10 776991 4186.6 792 797 185.4
C 14 238 128563 689.14 792 797 185.4
C 8 229 33619 177.03 792 797 185.4
D 12 33 348671 1831.43 811 793 189.9
D 8 195 225777 1184.45 811 793 189.9
D 2 250 161503 846.07 811 793 189.9

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