ASTROSAT CZTI

Data Quality Report

Orbit 20353

Creation date: 2024-06-27T18:14:18.029951
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/AS1A05_163T01_9000003010_20353cztM0_level2.evt modeM0/AS1A05_163T01_9000003010_20353cztM0_level2_quad_clean.evt
Size (bytes)457,404,48083,816,640
Size436.2 MB 79.9 MB
Events in quadrant A3,269,186527,333
Events in quadrant B3,319,867536,756
Events in quadrant C3,287,925510,437
Events in quadrant D3,528,283504,635

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137403
B0137512
C0137502
D0148182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6579460.699194%
B6580801.215805%
C6580961.458967%
D6580530.805471%

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 8979 6581 0 0 0.00% 0.00%
B 8980 6582 0 0 0.00% 0.00%
C 8980 6582 0 0 0.00% 0.00%
D 8980 6582 26 26 0.29% 0.40%

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 12 96 15605 86.68 844 828 170.5
A 0 226 7374 38.4 844 828 170.5
A 13 254 7246 37.65 844 828 170.5
B 12 111 20345 121.03 840 820 161.3
B 11 111 18009 106.55 840 820 161.3
B 0 214 17757 104.99 840 820 161.3
C 14 238 126044 668.61 803 809 187.3
C 7 247 12089 60.22 803 809 187.3
C 7 220 11210 55.53 803 809 187.3
D 11 176 219127 1107.06 814 791 197.2
D 7 238 144266 727.48 814 791 197.2
D 1 52 68473 343.18 814 791 197.2

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