ASTROSAT CZTI

Data Quality Report

Orbit 07260

Creation date: 2024-06-27T15:17:39.201722
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/AS1A02_155T01_9000000994_07260cztM0_level2.evt modeM0/AS1A02_155T01_9000000994_07260cztM0_level2_quad_clean.evt
Size (bytes)111,358,08031,052,160
Size106.2 MB 29.6 MB
Events in quadrant A746,400205,332
Events in quadrant B794,477207,454
Events in quadrant C744,323204,743
Events in quadrant D966,690195,368

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A034751
B035400
C034720
D041720

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A173310.057703%
B173320.115407%
C173300.000000%
D1733593.404501%

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 1733 1733 0 0 0.00% 0.00%
B 1733 1733 0 0 0.00% 0.00%
C 1733 1733 0 0 0.00% 0.00%
D 1733 1733 47 47 2.71% 2.71%

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 13934 338.26 190 185 40.6
A 0 226 1820 40.23 190 185 40.6
A 12 194 1751 38.53 190 185 40.6
B 4 81 24771 619.71 194 189 39.7
B 5 255 10769 266.72 194 189 39.7
B 12 111 4040 97.08 194 189 39.7
C 9 68 1653 31.67 190 191 46.2
C 13 61 1433 26.91 190 191 46.2
C 8 222 539 7.54 190 191 46.2
D 2 14 264501 5633.35 184 178 46.9
D 14 34 8018 167.09 184 178 46.9
D 2 216 2885 57.69 184 178 46.9

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