ASTROSAT CZTI

Data Quality Report

Orbit 30525

Creation date: 2024-06-27T20:16:31.058108
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_053T14_9000004390_30525cztM0_level2.evt modeM0/AS1A10_053T14_9000004390_30525cztM0_level2_quad_clean.evt
Size (bytes)487,814,40087,096,960
Size465.2 MB 83.1 MB
Events in quadrant A3,016,710571,016
Events in quadrant B4,659,659565,669
Events in quadrant C3,180,210539,861
Events in quadrant D3,512,874544,739

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126201
B0181891
C0131591
D0139821

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5965580.972339%
B59651001.676446%
C59651442.414082%
D59651081.810562%

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 7080 5966 0 0 0.00% 0.00%
B 7080 5966 2 2 0.03% 0.03%
C 7080 5966 9 9 0.13% 0.15%
D 7080 5966 87 87 1.23% 1.46%

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 10391 62.41 777 763 154.3
A 15 192 9691 57.87 777 763 154.3
A 8 192 9687 57.84 777 763 154.3
B 6 159 1641503 11504.9 754 735 142.6
B 4 171 17519 117.68 754 735 142.6
B 12 111 17129 114.95 754 735 142.6
C 10 22 136291 797.88 727 732 169.9
C 14 238 130633 764.57 727 732 169.9
C 3 233 27556 157.88 727 732 169.9
D 12 227 329174 1822.13 752 735 180.3
D 8 195 220292 1218.07 752 735 180.3
D 13 249 39032 212.47 752 735 180.3

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