ASTROSAT CZTI

Data Quality Report

Orbit 49757

Creation date: 2024-12-14T14:00:22.982475
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/AS1A13_037T01_9000006440_49757cztM0_level2.fits modeM0/AS1A13_037T01_9000006440_49757cztM0_level2_quad_clean.evt
Size (bytes)1,308,686,40053,288,640
Size1.2 GB 50.8 MB
Events in quadrant A18,075,825208,992
Events in quadrant B5,288,120681,348
Events in quadrant C6,876,0963,754
Events in quadrant D17,672,301231,629

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0584510
B0203410
C0253420
D0572270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68576857100.000000%
B68584396.401283%
C68586858100.000000%
D6858674898.396034%

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 6856 6856 6735 6735 98.24% 98.24%
B 6858 6858 355 355 5.18% 5.18%
C 6857 6857 0 0 0.00% 0.00%
D 6857 6857 6655 6655 97.05% 97.05%

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 98 4687973 63145.64 252 243 74.2
A 10 83 4095750 55168.15 252 243 74.2
A 12 50 2117271 28517.23 252 243 74.2
B 3 232 1047783 6882.7 710 690 152.1
B 4 21 284427 1865.05 710 690 152.1
B 10 128 264476 1733.91 710 690 152.1
C 15 180 1468947 115083.7 16 15 12.8
C 15 190 1091482 85511.15 16 15 12.8
C 15 181 857183 67154.96 16 15 12.8
D 15 168 4287315 39318.29 306 292 109.0
D 15 25 2215319 20315.05 306 292 109.0
D 15 40 1141129 10463.15 306 292 109.0

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