ASTROSAT CZTI

Data Quality Report

Orbit 10340

Creation date: 2024-06-27T15:58:08.802668
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/AS1C02_038T02_9000001490_10340cztM0_level2.evt modeM0/AS1C02_038T02_9000001490_10340cztM0_level2_quad_clean.evt
Size (bytes)459,498,24077,031,360
Size438.2 MB 73.5 MB
Events in quadrant A3,444,137446,842
Events in quadrant B3,153,856452,038
Events in quadrant C2,967,552455,624
Events in quadrant D3,890,162507,815

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105
B0105
C0105
D094

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330178
B0330173
C0330184
D0317164

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03731323051
B03532221701
C03324619704
D03512018665

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6181761.229575%
B6449831.287021%
C6650260.390977%
D7638350.458235%

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 8668 7421 0 0 0.00% 0.00%
B 8670 7620 1 1 0.01% 0.01%
C 8670 7764 0 0 0.00% 0.00%
D 8670 7945 4 4 0.05% 0.05%

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 626979 4212.6 716 699 148.7
A 8 5 22655 147.68 716 699 148.7
A 13 251 21847 142.25 716 699 148.7
B 0 219 82674 561.45 756 736 145.9
B 4 239 66516 450.73 756 736 145.9
B 11 51 21941 145.3 756 736 145.9
C 14 234 8981 46.49 759 760 176.8
C 13 61 5609 27.42 759 760 176.8
C 3 202 1933 6.63 759 760 176.8
D 8 195 354241 1674.65 869 844 211.0
D 1 20 66345 310.39 869 844 211.0
D 2 33 58454 273.0 869 844 211.0

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