ASTROSAT CZTI

Data Quality Report

Orbit 17180

Creation date: 2024-06-27T17:33:15.203312
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/AS1A05_185T04_9000002548_17180cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17180cztM0_level2_quad_clean.evt
Size (bytes)466,827,84094,072,320
Size445.2 MB 89.7 MB
Events in quadrant A3,111,106625,255
Events in quadrant B3,370,755628,525
Events in quadrant C3,159,317594,191
Events in quadrant D4,076,752569,267

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131842
B0140202
C0132142
D0163912

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6183450.727802%
B6183560.905709%
C6183741.196830%
D61823004.852798%

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 7488 6184 0 0 0.00% 0.00%
B 7488 6184 4 4 0.05% 0.06%
C 7488 6184 0 0 0.00% 0.00%
D 7487 6183 228 228 3.05% 3.69%

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 12 189 29822 181.72 797 781 159.8
A 12 96 13245 77.99 797 781 159.8
A 0 226 7121 39.67 797 781 159.8
B 0 189 90571 605.33 797 779 148.3
B 0 197 49030 325.29 797 779 148.3
B 0 219 47516 315.08 797 779 148.3
C 14 238 118748 663.46 766 771 177.8
C 3 233 47469 262.61 766 771 177.8
C 13 61 5591 27.11 766 771 177.8
D 15 0 548671 2981.31 766 745 183.8
D 5 222 450160 2445.3 766 745 183.8
D 12 233 57628 309.5 766 745 183.8

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