ASTROSAT CZTI

Data Quality Report

Orbit 25105

Creation date: 2024-06-27T19:13:55.022483
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/AS1C05_012T06_9000003674_25105cztM0_level2.evt modeM0/AS1C05_012T06_9000003674_25105cztM0_level2_quad_clean.evt
Size (bytes)620,352,00099,604,800
Size591.6 MB 95.0 MB
Events in quadrant A3,120,480657,184
Events in quadrant B3,257,385666,994
Events in quadrant C3,227,810635,472
Events in quadrant D8,712,015573,146

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140250
B0142270
C0141990
D0306470

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6930831.197691%
B69311071.543789%
C69311091.572645%
D6931125218.063771%

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 7290 6930 0 0 0.00% 0.00%
B 7291 6931 6 6 0.08% 0.09%
C 7291 6932 1 1 0.01% 0.01%
D 7291 6932 1052 1052 14.43% 15.18%

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 11115 63.56 807 789 162.4
A 3 1 9387 52.93 807 789 162.4
A 3 137 7545 41.59 807 789 162.4
B 0 189 40765 258.34 807 784 154.8
B 5 172 35991 227.49 807 784 154.8
B 12 111 18947 117.36 807 784 154.8
C 14 238 123369 676.35 771 775 181.3
C 0 207 39532 213.82 771 775 181.3
C 7 247 34304 184.98 771 775 181.3
D 7 223 3053516 15586.43 734 717 195.9
D 8 195 1251725 6387.17 734 717 195.9
D 12 33 870199 4439.24 734 717 195.9

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