ASTROSAT CZTI

Data Quality Report

Orbit 27908

Creation date: 2024-06-27T19:45:51.263234
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/AS1A10_048T06_9000004030_27908cztM0_level2.evt modeM0/AS1A10_048T06_9000004030_27908cztM0_level2_quad_clean.evt
Size (bytes)579,936,960114,310,080
Size553.1 MB 109.0 MB
Events in quadrant A3,343,548799,488
Events in quadrant B3,630,899802,154
Events in quadrant C3,477,450740,948
Events in quadrant D6,684,172678,997

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138820
B0148320
C0143710
D0244930

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63091081.711840%
B63101682.662441%
C63101492.361331%
D631091514.500792%

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 7584 6309 0 0 0.00% 0.00%
B 7585 6310 30 30 0.40% 0.48%
C 7585 6310 6 6 0.08% 0.10%
D 7585 6310 816 816 10.76% 12.93%

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 13 254 10876 58.74 864 850 170.7
A 3 137 7664 39.92 864 850 170.7
A 0 226 7513 39.04 864 850 170.7
B 0 229 199984 1260.92 848 832 157.9
B 10 245 56699 353.72 848 832 157.9
B 0 230 21597 131.47 848 832 157.9
C 14 238 131534 710.86 799 805 183.9
C 15 208 114660 619.1 799 805 183.9
C 3 233 114361 617.48 799 805 183.9
D 1 52 2612865 14506.91 762 745 180.1
D 8 195 707624 3925.79 762 745 180.1
D 2 250 383986 2128.4 762 745 180.1

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