ASTROSAT CZTI

Data Quality Report

Orbit 07612

Creation date: 2024-06-27T15:21:49.015826
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/AS1A02_178T01_9000001048_07612cztM0_level2.evt modeM0/AS1A02_178T01_9000001048_07612cztM0_level2_quad_clean.evt
Size (bytes)145,872,00023,106,240
Size139.1 MB 22.0 MB
Events in quadrant A1,016,257143,929
Events in quadrant B1,034,682147,347
Events in quadrant C1,145,985141,833
Events in quadrant D1,096,983135,126

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041072
B041691
C046061
D043851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1793834.629113%
B1793794.406023%
C1793854.740658%
D1793774.294479%

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 3053 1794 0 0 0.00% 0.00%
B 3053 1794 0 0 0.00% 0.00%
C 3053 1794 8 8 0.26% 0.45%
D 3053 1794 4 4 0.13% 0.22%

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 0 226 2569 42.61 263 258 54.2
A 12 194 2381 39.15 263 258 54.2
A 3 1 1665 25.94 263 258 54.2
B 0 219 7601 144.81 261 256 50.7
B 4 81 7402 140.89 261 256 50.7
B 12 111 5039 94.3 261 256 50.7
C 4 254 71787 1187.55 256 257 60.2
C 9 68 69635 1151.83 256 257 60.2
C 4 238 4689 73.58 256 257 60.2
D 2 152 75474 1169.68 258 250 64.3
D 5 81 25192 387.83 258 250 64.3
D 1 52 8862 133.91 258 250 64.3

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