ASTROSAT CZTI

Data Quality Report

Orbit 14303

Creation date: 2024-06-27T16:53:14.109602
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/AS1A04_130T03_9000002108_14303cztM0_level2.evt modeM0/AS1A04_130T03_9000002108_14303cztM0_level2_quad_clean.evt
Size (bytes)529,202,88087,586,560
Size504.7 MB 83.5 MB
Events in quadrant A3,511,342551,009
Events in quadrant B4,034,336550,008
Events in quadrant C3,702,159535,643
Events in quadrant D4,297,475521,042

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147433
B0163532
C0148442
D0173872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70901562.200282%
B70902263.187588%
C70901001.410437%
D70902553.596615%

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 7831 7091 1 1 0.01% 0.01%
B 7831 7091 36 36 0.46% 0.51%
C 7831 7091 0 0 0.00% 0.00%
D 7831 7091 65 65 0.83% 0.92%

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 8 15 49488 269.33 887 866 180.5
A 12 189 43045 233.64 887 866 180.5
A 0 226 8160 40.4 887 866 180.5
B 0 229 469430 2808.05 873 851 166.9
B 10 245 48131 283.33 873 851 166.9
B 0 189 35138 205.47 873 851 166.9
C 3 233 364254 1819.29 855 857 199.7
C 13 61 6226 26.88 855 857 199.7
C 10 22 5939 25.44 855 857 199.7
D 13 122 342361 1687.32 854 833 202.4
D 5 222 304844 1501.97 854 833 202.4
D 12 110 164435 808.28 854 833 202.4

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