ASTROSAT CZTI

Data Quality Report

Orbit 28066

Creation date: 2024-06-27T19:47:39.582987
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_057T02_9000004054_28066cztM0_level2.evt modeM0/AS1A10_057T02_9000004054_28066cztM0_level2_quad_clean.evt
Size (bytes)599,258,88071,009,280
Size571.5 MB 67.7 MB
Events in quadrant A3,049,799509,798
Events in quadrant B7,400,684319,116
Events in quadrant C3,189,393479,255
Events in quadrant D4,147,582467,365

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123240
B0253880
C0128090
D0158430

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5339751.404757%
B5339203638.134482%
C53391142.135231%
D53392484.645065%

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 6619 5340 0 0 0.00% 0.00%
B 6619 5339 1812 1812 27.38% 33.94%
C 6619 5340 3 3 0.05% 0.06%
D 6619 5339 188 188 2.84% 3.52%

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 0 13 133251 902.9 739 728 146.8
A 6 16 58883 396.22 739 728 146.8
A 13 254 8891 55.62 739 728 146.8
B 10 245 5162174 49128.09 561 549 105.1
B 12 111 12111 110.05 561 549 105.1
B 11 111 10946 98.96 561 549 105.1
C 3 233 380261 2396.56 689 695 158.4
C 14 238 113653 713.21 689 695 158.4
C 15 208 8450 48.96 689 695 158.4
D 8 195 707542 4281.5 699 682 165.1
D 2 250 333778 2017.59 699 682 165.1
D 1 52 307325 1857.36 699 682 165.1

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