ASTROSAT CZTI

Data Quality Report

Orbit 32929

Creation date: 2024-06-27T20:43:34.317613
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/AS1C07_005T01_9000004748_32929cztM0_level2.evt modeM0/AS1C07_005T01_9000004748_32929cztM0_level2_quad_clean.evt
Size (bytes)530,746,560102,130,560
Size506.2 MB 97.4 MB
Events in quadrant A2,629,382714,683
Events in quadrant B3,484,123713,864
Events in quadrant C3,040,783696,425
Events in quadrant D6,568,770604,989

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111533
B0135872
C0124602
D0231752

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5174611.178972%
B51742675.160417%
C51741913.691535%
D517493117.993815%

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 7086 5174 51 51 0.72% 0.99%
B 7086 5174 175 175 2.47% 3.38%
C 7086 5174 147 147 2.07% 2.84%
D 7086 5174 963 963 13.59% 18.61%

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 0 143 187868 1501.82 616 605 124.7
A 7 16 25182 197.1 616 605 124.7
A 0 191 18039 139.82 616 605 124.7
B 5 172 409014 3549.33 615 601 115.1
B 5 32 224623 1946.87 615 601 115.1
B 0 197 140820 1218.58 615 601 115.1
C 0 10 389678 2883.73 591 595 134.9
C 14 128 232632 1719.76 591 595 134.9
C 1 241 70026 514.59 591 595 134.9
D 8 195 1790428 12571.23 549 538 142.4
D 12 227 1315549 9235.94 549 538 142.4
D 2 250 500115 3508.76 549 538 142.4

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