ASTROSAT CZTI

Data Quality Report

Orbit 20133

Creation date: 2024-06-27T18:11:40.166128
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_180T01_9000002992_20133cztM0_level2.evt modeM0/AS1A05_180T01_9000002992_20133cztM0_level2_quad_clean.evt
Size (bytes)519,226,56092,747,520
Size495.2 MB 88.5 MB
Events in quadrant A4,235,482593,940
Events in quadrant B3,570,577616,714
Events in quadrant C3,685,411574,882
Events in quadrant D3,797,256574,630

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165492
B0144222
C0148662
D0152042

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64233455.371322%
B64231051.634750%
C64231382.148529%
D64231362.117391%

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 7718 6423 172 172 2.23% 2.68%
B 7718 6424 0 0 0.00% 0.00%
C 7718 6424 0 0 0.00% 0.00%
D 7718 6424 57 57 0.74% 0.89%

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 14 238 759253 4245.81 902 891 178.6
A 0 226 7846 38.94 902 891 178.6
A 13 254 7004 34.22 902 891 178.6
B 12 111 19426 111.12 900 882 166.9
B 0 214 19003 108.59 900 882 166.9
B 11 111 17237 98.01 900 882 166.9
C 3 233 201220 1026.4 852 860 195.2
C 14 238 139552 710.49 852 860 195.2
C 0 207 14235 68.52 852 860 195.2
D 1 52 217919 1031.84 876 855 210.4
D 11 176 180302 853.02 876 855 210.4
D 7 96 30427 140.57 876 855 210.4

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