ASTROSAT CZTI

Data Quality Report

Orbit 06154

Creation date: 2024-06-27T15:03:29.114072
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/AS1A02_199T01_9000000800_06154cztM0_level2.evt modeM0/AS1A02_199T01_9000000800_06154cztM0_level2_quad_clean.evt
Size (bytes)437,950,080106,620,480
Size417.7 MB 101.7 MB
Events in quadrant A3,050,318700,151
Events in quadrant B3,696,843702,693
Events in quadrant C2,981,554692,210
Events in quadrant D3,069,051657,218

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140345
B0158462
C0139362
D0143364

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6840350.511696%
B68411261.841836%
C6841290.423915%
D6840490.716374%

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 7581 6842 0 0 0.00% 0.00%
B 7581 6842 43 43 0.57% 0.63%
C 7581 6842 0 0 0.00% 0.00%
D 7581 6842 11 11 0.15% 0.16%

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 65866 416.84 773 755 156.2
A 0 226 7569 43.62 773 755 156.2
A 12 194 7438 42.78 773 755 156.2
B 3 64 477298 3188.93 781 762 149.4
B 15 204 62319 411.93 781 762 149.4
B 0 219 43419 285.46 781 762 149.4
C 1 16 8658 44.65 761 764 176.8
C 13 61 6039 29.84 761 764 176.8
C 8 222 3785 17.09 761 764 176.8
D 5 97 71850 383.52 755 731 185.4
D 13 169 63196 336.85 755 731 185.4
D 8 195 38223 202.18 755 731 185.4

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