ASTROSAT CZTI

Data Quality Report

Orbit 40861

Creation date: 2024-06-27T22:21:26.331586
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/AS1A12_104T02_9000005572_40861cztM0_level2.fits modeM0/AS1A12_104T02_9000005572_40861cztM0_level2_quad_clean.evt
Size (bytes)154,391,04038,471,040
Size147.2 MB 36.7 MB
Events in quadrant A1,194,205261,236
Events in quadrant B1,579,114251,573
Events in quadrant C1,125,716251,343
Events in quadrant D1,625,356226,427

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049860
B064090
C049720
D065010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A242110.041305%
B24211506.195787%
C242140.165221%
D2421813.345725%

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 2421 2421 0 0 0.00% 0.00%
B 2421 2421 96 96 3.97% 3.97%
C 2421 2421 5 5 0.21% 0.21%
D 2421 2421 59 59 2.44% 2.44%

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 10 83 168183 3078.94 255 250 54.5
A 12 189 15815 285.37 255 250 54.5
A 13 6 11222 201.16 255 250 54.5
B 4 171 560927 11429.73 244 238 49.1
B 0 190 40563 822.03 244 238 49.1
B 0 229 9684 192.56 244 238 49.1
C 15 214 97477 1656.1 247 248 58.7
C 14 254 37931 641.85 247 248 58.7
C 12 249 16719 280.55 247 248 58.7
D 12 79 229197 3706.38 245 239 61.8
D 13 249 169218 2735.44 245 239 61.8
D 2 249 130636 2110.87 245 239 61.8

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