ASTROSAT CZTI

Data Quality Report

Orbit 08323

Creation date: 2024-06-27T15:30:58.766015
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/AS1A03_093T01_9000001156_08323cztM0_level2.evt modeM0/AS1A03_093T01_9000001156_08323cztM0_level2_quad_clean.evt
Size (bytes)461,695,68077,316,480
Size440.3 MB 73.7 MB
Events in quadrant A3,399,247476,562
Events in quadrant B3,516,387482,511
Events in quadrant C3,377,750474,418
Events in quadrant D3,254,497461,518

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137803
B0141722
C0140606
D0136272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63941221.908039%
B63941892.955896%
C63931632.549664%
D63941191.861120%

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 7624 6394 5 5 0.07% 0.08%
B 7624 6394 26 26 0.34% 0.41%
C 7624 6395 27 27 0.35% 0.42%
D 7624 6395 6 6 0.08% 0.09%

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 81179 473.85 843 827 169.6
A 15 223 43427 251.22 843 827 169.6
A 13 14 23531 133.89 843 827 169.6
B 0 214 85148 530.6 841 825 158.9
B 0 187 75032 466.94 841 825 158.9
B 4 81 71628 445.52 841 825 158.9
C 9 54 197250 1045.63 816 821 187.9
C 13 61 6313 29.23 816 821 187.9
C 3 202 1994 6.24 816 821 187.9
D 2 152 65605 302.82 816 796 214.0
D 12 221 56883 262.06 816 796 214.0
D 2 234 20834 93.63 816 796 214.0

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