ASTROSAT CZTI

Data Quality Report

Orbit 32730

Creation date: 2024-06-27T20:41:19.861581
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_123T04_9000004726_32730cztM0_level2.evt modeM0/AS1A10_123T04_9000004726_32730cztM0_level2_quad_clean.evt
Size (bytes)470,597,76061,162,560
Size448.8 MB 58.3 MB
Events in quadrant A2,709,097396,396
Events in quadrant B2,674,471401,551
Events in quadrant C2,624,071386,712
Events in quadrant D5,910,447321,149

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110233
B0108422
C0108352
D0212532

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4928210.426136%
B4928330.669643%
C4928921.866883%
D492881216.477273%

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 7020 4929 14 14 0.20% 0.28%
B 7020 4929 18 18 0.26% 0.37%
C 7020 4929 79 79 1.13% 1.60%
D 7020 4929 709 709 10.10% 14.38%

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 10 228 204307 1693.92 599 589 120.3
A 15 249 171246 1419.01 599 589 120.3
A 13 254 9321 72.61 599 589 120.3
B 0 197 87056 766.73 597 585 112.8
B 0 183 56691 497.49 597 585 112.8
B 0 199 50303 440.84 597 585 112.8
C 0 10 254748 1934.08 572 577 131.4
C 3 233 56532 425.78 572 577 131.4
C 15 208 18459 136.07 572 577 131.4
D 2 250 1051320 8172.57 539 527 128.6
D 12 218 900911 7002.76 539 527 128.6
D 1 20 386886 3004.92 539 527 128.6

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