ASTROSAT CZTI

Data Quality Report

Orbit 30312

Creation date: 2024-06-27T20:13:33.041419
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/AS1A10_071T20_9000004354_30312cztM0_level2.evt modeM0/AS1A10_071T20_9000004354_30312cztM0_level2_quad_clean.evt
Size (bytes)556,945,92092,859,840
Size531.1 MB 88.6 MB
Events in quadrant A3,286,107608,836
Events in quadrant B5,251,827617,540
Events in quadrant C4,487,056576,828
Events in quadrant D3,417,063570,399

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135752
B0196512
C0175302
D0142302

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6282320.509392%
B6282741.177969%
C62822043.247373%
D6282310.493473%

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 7612 6283 3 3 0.04% 0.05%
B 7612 6283 15 15 0.20% 0.24%
C 7612 6283 11 11 0.14% 0.18%
D 7612 6283 17 17 0.22% 0.27%

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 14 239 116783 715.96 814 800 162.0
A 8 192 25510 152.53 814 800 162.0
A 13 254 11294 64.78 814 800 162.0
B 6 159 1808553 11761.87 809 790 153.7
B 6 36 228981 1484.68 809 790 153.7
B 15 185 27871 176.2 809 790 153.7
C 3 233 1298701 7153.48 776 783 181.4
C 14 238 128189 702.2 776 783 181.4
C 0 10 23821 126.97 776 783 181.4
D 8 195 185434 915.73 771 757 201.7
D 13 104 86011 422.74 771 757 201.7
D 5 222 80747 396.63 771 757 201.7

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