ASTROSAT CZTI

Data Quality Report

Orbit 11063

Creation date: 2024-06-27T16:07:44.382813
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_053T01_9000001610_11063cztM0_level2.evt modeM0/AS1A04_053T01_9000001610_11063cztM0_level2_quad_clean.evt
Size (bytes)435,600,00067,334,400
Size415.4 MB 64.2 MB
Events in quadrant A2,683,605417,024
Events in quadrant B4,025,937405,955
Events in quadrant C2,625,416415,109
Events in quadrant D3,467,342399,600

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120091
B0157040
C0119540
D0143330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57451101.914708%
B57454157.223673%
C5745390.678851%
D57451362.367276%

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 5760 5746 1 1 0.02% 0.02%
B 5760 5746 204 204 3.54% 3.55%
C 5760 5746 0 0 0.00% 0.00%
D 5760 5746 63 63 1.09% 1.10%

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 14 238 12690 84.42 689 670 142.4
A 13 248 11179 73.8 689 670 142.4
A 0 226 6191 38.77 689 670 142.4
B 4 239 1174210 8890.4 682 665 132.0
B 3 189 65363 490.13 682 665 132.0
B 15 204 55553 415.81 682 665 132.0
C 13 61 4976 27.25 671 674 157.8
C 8 128 3686 19.08 671 674 157.8
C 1 3 3337 16.87 671 674 157.8
D 11 129 434288 2704.92 661 639 160.3
D 1 52 258029 1605.49 661 639 160.3
D 10 253 71123 439.65 661 639 160.3

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