ASTROSAT CZTI

Data Quality Report

Orbit 10123

Creation date: 2024-06-27T15:55:16.309598
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/AS1G07_013T01_9000001456_10123cztM0_level2.evt modeM0/AS1G07_013T01_9000001456_10123cztM0_level2_quad_clean.evt
Size (bytes)150,796,80042,082,560
Size143.8 MB 40.1 MB
Events in quadrant A1,058,660285,380
Events in quadrant B1,110,155286,089
Events in quadrant C1,045,476287,531
Events in quadrant D1,187,660243,311

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170120
B0170124
C0167125
D0168120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A085
B084
C084
D084

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01683711923
B01731412358
C01672211818
D02097315929

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2426271.112943%
B2414371.532726%
C2430190.781893%
D2162512.358927%

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 9117 3720 0 0 0.00% 0.00%
B 9087 3736 0 0 0.00% 0.00%
C 9138 3722 0 0 0.00% 0.00%
D 9118 3416 22 22 0.24% 0.64%

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 15 4743 77.68 271 264 57.7
A 13 253 3520 56.47 271 264 57.7
A 15 174 3431 54.93 271 264 57.7
B 0 198 10460 188.08 273 266 54.2
B 0 219 10113 181.68 273 266 54.2
B 12 111 5465 95.92 273 266 54.2
C 14 67 3705 54.76 266 267 62.8
C 13 61 1967 27.08 266 267 62.8
C 8 128 1875 25.61 266 267 62.8
D 1 52 115942 2022.2 232 225 57.2
D 8 195 42035 730.65 232 225 57.2
D 2 136 40990 712.39 232 225 57.2

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