ASTROSAT CZTI

Data Quality Report

Orbit 42363

Creation date: 2024-06-27T22:39:26.289275
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/AS1C06_010T01_9000005800_42363cztM0_level2.fits modeM0/AS1C06_010T01_9000005800_42363cztM0_level2_quad_clean.evt
Size (bytes)278,965,44064,702,080
Size266.0 MB 61.7 MB
Events in quadrant A2,060,005432,251
Events in quadrant B2,144,298432,293
Events in quadrant C1,832,820431,451
Events in quadrant D3,978,437381,828

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A086422
B092931
C080801
D0145971

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A398490.225904%
B39841082.710843%
C398420.050201%
D39842987.479920%

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 5326 3985 4 4 0.08% 0.10%
B 5326 3985 61 61 1.15% 1.53%
C 5326 3985 0 0 0.00% 0.00%
D 5326 3985 325 325 6.10% 8.16%

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 10 83 352432 3997.48 428 419 88.1
A 13 248 40398 454.0 428 419 88.1
A 13 254 6672 71.01 428 419 88.1
B 5 255 265896 3194.34 420 408 83.1
B 4 81 109079 1307.52 420 408 83.1
B 3 112 37187 442.52 420 408 83.1
C 15 214 163959 1666.4 416 417 98.1
C 8 79 19383 193.25 416 417 98.1
C 2 16 8989 87.34 416 417 98.1
D 5 222 1386945 13715.89 409 396 101.1
D 1 52 595046 5882.34 409 396 101.1
D 13 249 252550 2494.33 409 396 101.1

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