ASTROSAT CZTI

Data Quality Report

Orbit 10773

Creation date: 2024-06-27T16:03:35.020866
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/AS1G07_014T02_9000001556_10773cztM0_level2.evt modeM0/AS1G07_014T02_9000001556_10773cztM0_level2_quad_clean.evt
Size (bytes)788,918,400129,260,160
Size752.4 MB 123.3 MB
Events in quadrant A5,437,682803,465
Events in quadrant B6,733,616808,857
Events in quadrant C4,721,593815,467
Events in quadrant D6,299,026770,694

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023022
B023014
C023020
D023018

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250632135
B0296402678
C0231851747
D0299054499

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10398750.721293%
B103645525.326129%
C10453670.640964%
D101352622.585101%

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 12021 10979 3 3 0.02% 0.03%
B 12021 10920 266 266 2.21% 2.44%
C 12021 11011 0 0 0.00% 0.00%
D 12021 10698 159 159 1.32% 1.49%

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 15 239 737791 2979.62 1212 1184 247.2
A 1 162 12578 46.09 1212 1184 247.2
A 0 226 11087 40.06 1212 1184 247.2
B 4 239 1863422 8030.83 1201 1169 231.9
B 0 214 81208 345.16 1201 1169 231.9
B 15 204 41473 173.81 1201 1169 231.9
C 8 128 12378 39.91 1204 1207 279.9
C 13 61 9142 28.35 1204 1207 279.9
C 8 112 7115 21.11 1204 1207 279.9
D 1 52 690932 2486.12 1143 1112 277.5
D 8 195 546945 1967.19 1143 1112 277.5
D 10 199 280981 1008.65 1143 1112 277.5

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