ASTROSAT CZTI

Data Quality Report

Orbit 14068

Creation date: 2024-06-27T16:49:57.028902
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/AS1G08_055T01_9000002076_14068cztM0_level2.evt modeM0/AS1G08_055T01_9000002076_14068cztM0_level2_quad_clean.evt
Size (bytes)539,409,600135,901,440
Size514.4 MB 129.6 MB
Events in quadrant A3,210,618952,466
Events in quadrant B4,018,713953,432
Events in quadrant C3,181,495915,978
Events in quadrant D5,512,673868,946

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134602
B0159721
C0133881
D0208421

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6101891.458777%
B61012484.064907%
C6101841.376823%
D61011983.245370%

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 7407 6103 0 0 0.00% 0.00%
B 7407 6103 114 114 1.54% 1.87%
C 7407 6103 6 6 0.08% 0.10%
D 7407 6103 100 100 1.35% 1.64%

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 12 189 68409 418.72 812 798 161.5
A 8 15 15419 90.55 812 798 161.5
A 0 226 7324 40.42 812 798 161.5
B 10 16 484121 3300.49 802 788 146.4
B 0 85 228063 1551.97 802 788 146.4
B 3 209 49894 335.33 802 788 146.4
C 0 207 128486 740.22 765 771 172.5
C 3 233 67927 389.23 765 771 172.5
C 13 61 5669 28.39 765 771 172.5
D 1 52 1246354 6994.83 761 744 178.1
D 13 104 528608 2964.26 761 744 178.1
D 12 110 178265 996.88 761 744 178.1

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