ASTROSAT CZTI

Data Quality Report

Orbit 04705

Creation date: 2024-06-27T14:45:51.208812
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/AS1G05_235T01_9000000590_04705cztM0_level2.evt modeM0/AS1G05_235T01_9000000590_04705cztM0_level2_quad_clean.evt
Size (bytes)304,447,68028,912,320
Size290.3 MB 27.6 MB
Events in quadrant A1,541,905173,035
Events in quadrant B1,555,343175,685
Events in quadrant C1,451,730174,453
Events in quadrant D4,460,238131,603

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0673
B0671
C0693
D0662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0131
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06833149
B06725149
C06567166
D015750355

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3087501.619695%
B3090240.776699%
C308590.291734%
D307882026.640676%

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 4375 3105 17 17 0.39% 0.55%
B 4381 3106 1 1 0.02% 0.03%
C 4374 3098 0 0 0.00% 0.00%
D 4379 3095 763 763 17.42% 24.65%

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 0 118 72878 933.66 373 365 77.7
A 8 15 21995 278.5 373 365 77.7
A 0 226 10380 128.95 373 365 77.7
B 14 167 24015 315.0 383 372 75.1
B 15 54 12281 158.66 383 372 75.1
B 4 80 9253 118.32 383 372 75.1
C 13 61 3012 30.09 371 372 87.8
C 14 67 1149 8.85 371 372 87.8
C 3 202 906 6.09 371 372 87.8
D 2 63 2355006 28726.94 332 322 82.0
D 1 31 619620 7555.38 332 322 82.0
D 2 234 60141 729.79 332 322 82.0

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