ASTROSAT CZTI

Data Quality Report

Orbit 19697

Creation date: 2024-06-27T18:05:42.576409
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_013T01_9000002944_19697cztM0_level2.evt modeM0/AS1A05_013T01_9000002944_19697cztM0_level2_quad_clean.evt
Size (bytes)437,207,04093,087,360
Size417.0 MB 88.8 MB
Events in quadrant A3,055,053607,756
Events in quadrant B3,270,768622,696
Events in quadrant C3,297,870578,977
Events in quadrant D3,184,274565,253

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132332
B0138312
C0137912
D0138232

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6367150.235590%
B6367340.534003%
C6367500.785299%
D6367230.361238%

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 7557 6368 0 0 0.00% 0.00%
B 7557 6368 2 2 0.03% 0.03%
C 7557 6368 4 4 0.05% 0.06%
D 7557 6368 23 23 0.30% 0.36%

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 10 253 16246 97.91 789 774 158.0
A 0 226 7015 39.49 789 774 158.0
A 3 137 6275 34.81 789 774 158.0
B 4 216 71174 470.26 791 772 149.7
B 0 189 40113 262.78 791 772 149.7
B 0 197 21082 135.66 791 772 149.7
C 3 233 193763 1107.67 748 753 174.2
C 14 238 120080 684.81 748 753 174.2
C 0 207 58666 332.36 748 753 174.2
D 1 52 83015 448.12 752 729 183.6
D 10 230 72096 388.66 752 729 183.6
D 7 96 51582 276.94 752 729 183.6

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