ASTROSAT CZTI

Data Quality Report

Orbit 14358

Creation date: 2024-06-27T16:53:55.945681
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/AS1A04_048T01_9000002114_14358cztM0_level2.evt modeM0/AS1A04_048T01_9000002114_14358cztM0_level2_quad_clean.evt
Size (bytes)544,973,76075,916,800
Size519.7 MB 72.4 MB
Events in quadrant A3,284,860479,320
Events in quadrant B4,238,417477,696
Events in quadrant C3,756,904475,025
Events in quadrant D4,799,281428,546

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134013
B0164802
C0154802
D0182132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6273190.302885%
B62732724.336043%
C6273200.318827%
D62734807.651841%

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 7644 6275 0 0 0.00% 0.00%
B 7644 6275 184 184 2.41% 2.93%
C 7644 6275 0 0 0.00% 0.00%
D 7644 6275 438 438 5.73% 6.98%

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 88048 530.48 827 814 164.4
A 2 79 7688 41.8 827 814 164.4
A 0 226 7419 40.17 827 814 164.4
B 10 16 836833 5537.98 820 803 151.0
B 0 229 89154 585.25 820 803 151.0
B 0 189 29210 188.17 820 803 151.0
C 3 233 570005 3093.25 815 822 184.0
C 13 61 5909 27.65 815 822 184.0
C 3 232 5592 25.92 815 822 184.0
D 1 52 908114 4995.45 777 761 181.6
D 5 222 560652 3082.49 777 761 181.6
D 2 120 196490 1077.59 777 761 181.6

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