ASTROSAT CZTI

Data Quality Report

Orbit 13210

Creation date: 2024-06-27T16:37:54.478194
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_216T01_9000001968_13210cztM0_level2.evt modeM0/AS1A04_216T01_9000001968_13210cztM0_level2_quad_clean.evt
Size (bytes)282,058,56061,755,840
Size269.0 MB 58.9 MB
Events in quadrant A1,845,961411,585
Events in quadrant B2,651,694397,943
Events in quadrant C1,797,021405,045
Events in quadrant D1,985,381384,331

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079962
B0104571
C079011
D083521

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3831521.357348%
B38313118.117985%
C3831280.730880%
D3831551.435656%

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 4877 3833 0 0 0.00% 0.00%
B 4877 3833 179 179 3.67% 4.67%
C 4877 3833 0 0 0.00% 0.00%
D 4877 3833 19 19 0.39% 0.50%

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 31681 327.35 467 457 95.4
A 4 2 8534 84.68 467 457 95.4
A 1 162 6471 63.05 467 457 95.4
B 4 239 752617 8610.33 456 444 87.4
B 3 64 48684 552.22 456 444 87.4
B 3 209 14680 162.96 456 444 87.4
C 15 208 21814 201.74 454 457 105.9
C 13 61 3413 27.92 454 457 105.9
C 8 222 2142 15.92 454 457 105.9
D 1 52 197481 1823.33 448 434 108.1
D 10 157 36434 333.12 448 434 108.1
D 8 195 30258 275.97 448 434 108.1

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