ASTROSAT CZTI

Data Quality Report

Orbit 09514

Creation date: 2024-06-27T15:47:07.335911
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/AS1G05_230T06_9000001350_09514cztM0_level2.evt modeM0/AS1G05_230T06_9000001350_09514cztM0_level2_quad_clean.evt
Size (bytes)485,812,80080,375,040
Size463.3 MB 76.7 MB
Events in quadrant A3,354,417518,696
Events in quadrant B2,899,682530,297
Events in quadrant C4,695,923471,796
Events in quadrant D3,363,322503,063

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189725150
B0169954478
C0271239236
D0191775337

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016642
B016642
C016551
D016636

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051
B051
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5894681.153716%
B5967310.519524%
C5526175131.686573%
D5937340.572680%

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 8637 6869 9 9 0.10% 0.13%
B 8635 6937 1 1 0.01% 0.01%
C 8639 6300 600 600 6.95% 9.52%
D 8639 6907 18 18 0.21% 0.26%

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 8 5 268840 1818.04 709 691 147.5
A 1 162 144407 974.39 709 691 147.5
A 1 178 58075 389.06 709 691 147.5
B 0 219 37367 263.35 718 702 139.2
B 0 214 36025 253.71 718 702 139.2
B 12 111 14722 100.7 718 702 139.2
C 4 254 2749244 23773.66 494 496 115.6
C 14 234 16645 139.67 494 496 115.6
C 13 61 3792 28.51 494 496 115.6
D 8 195 335315 1872.03 684 668 178.8
D 1 52 165984 924.78 684 668 178.8
D 2 16 75378 417.93 684 668 178.8

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