ASTROSAT CZTI

Data Quality Report

Orbit 19378

Creation date: 2024-06-27T18:02:25.780413
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/AS1C04_009T04_9000002866_19378cztM0_level2.evt modeM0/AS1C04_009T04_9000002866_19378cztM0_level2_quad_clean.evt
Size (bytes)217,195,20039,219,840
Size207.1 MB 37.4 MB
Events in quadrant A986,896279,901
Events in quadrant B995,688283,163
Events in quadrant C970,229269,806
Events in quadrant D3,492,953214,692

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040811
B040791
C039871
D0117041

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1913241.254574%
B1913261.359122%
C1913211.097752%
D191389146.576059%

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 3013 1914 0 0 0.00% 0.00%
B 3013 1913 0 0 0.00% 0.00%
C 3013 1913 0 0 0.00% 0.00%
D 3012 1912 802 802 26.63% 41.95%

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 13 254 2387 40.23 255 250 53.1
A 0 226 2232 37.31 255 250 53.1
A 3 137 2035 33.6 255 250 53.1
B 0 198 8034 158.69 251 244 49.1
B 12 111 5892 115.06 251 244 49.1
B 11 111 5026 97.42 251 244 49.1
C 14 238 38491 677.34 238 239 56.5
C 3 233 1797 27.59 238 239 56.5
C 13 61 1623 24.51 238 239 56.5
D 10 66 1696262 32894.43 206 200 51.6
D 7 238 772474 14977.94 206 200 51.6
D 1 52 160978 3118.22 206 200 51.6

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