ASTROSAT CZTI

Data Quality Report

Orbit 32006

Creation date: 2024-06-27T20:35:09.695641
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/AS1C06_010T03_9000004676_32006cztM0_level2.evt modeM0/AS1C06_010T03_9000004676_32006cztM0_level2_quad_clean.evt
Size (bytes)1,392,436,800333,944,640
Size1.3 GB 318.5 MB
Events in quadrant A7,846,8392,377,459
Events in quadrant B12,811,4722,324,532
Events in quadrant C9,824,5702,168,039
Events in quadrant D10,630,1982,162,840

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03200
B03200
C03200
D03200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0324953
B0492283
C0390783
D0415533

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0370
B0370
C0370
D0370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A156922141.363752%
B156925583.555952%
C156925343.403008%
D156936544.167463%

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 19397 15692 0 0 0.00% 0.00%
B 19397 15692 110 110 0.57% 0.70%
C 19397 15692 46 46 0.24% 0.29%
D 19398 15693 424 424 2.19% 2.70%

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 28729 67.44 2028 1992 396.5
A 3 137 18236 40.97 2028 1992 396.5
A 0 226 17433 38.95 2028 1992 396.5
B 6 159 4162879 11517.14 1964 1918 361.3
B 10 245 336127 925.06 1964 1918 361.3
B 0 190 277498 762.78 1964 1918 361.3
C 3 233 1214113 2875.23 1869 1881 421.6
C 0 10 674878 1596.25 1869 1881 421.6
C 14 238 323043 761.75 1869 1881 421.6
D 8 195 1594063 3586.54 1917 1869 443.9
D 13 249 904023 2032.17 1917 1869 443.9
D 12 218 487141 1093.11 1917 1869 443.9

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