ASTROSAT CZTI

Data Quality Report

Orbit 06750

Creation date: 2024-06-27T15:11:15.139967
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/AS1G06_168T10_9000000932_06750cztM0_level2.evt modeM0/AS1G06_168T10_9000000932_06750cztM0_level2_quad_clean.evt
Size (bytes)623,949,120119,986,560
Size595.0 MB 114.4 MB
Events in quadrant A4,750,351751,017
Events in quadrant B4,274,907779,782
Events in quadrant C4,044,408767,785
Events in quadrant D5,235,630730,393

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201562
B0186271
C0182901
D0212591

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A87004695.390805%
B87002803.218391%
C87001321.517241%
D87003423.931034%

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 8930 8701 187 187 2.09% 2.15%
B 8930 8701 8 8 0.09% 0.09%
C 8930 8701 0 0 0.00% 0.00%
D 8930 8701 154 154 1.72% 1.77%

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 4 2 643988 2992.04 1039 1015 214.9
A 14 111 62988 288.39 1039 1015 214.9
A 13 248 21785 96.65 1039 1015 214.9
B 0 214 63154 299.29 1062 1032 207.6
B 4 81 47471 223.73 1062 1032 207.6
B 5 143 31163 145.16 1062 1032 207.6
C 9 16 26584 106.21 1022 1026 240.6
C 9 247 20919 82.66 1022 1026 240.6
C 13 61 7770 28.02 1022 1026 240.6
D 2 33 685305 2719.65 1014 981 251.6
D 8 195 589655 2339.51 1014 981 251.6
D 2 63 64764 253.49 1014 981 251.6

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