ASTROSAT CZTI

Data Quality Report

Orbit 43053

Creation date: 2024-06-27T22:47:23.615232
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/AS1T05_148T01_9000005838_43053cztM0_level2.fits modeM0/AS1T05_148T01_9000005838_43053cztM0_level2_quad_clean.evt
Size (bytes)538,629,120102,309,120
Size513.7 MB 97.6 MB
Events in quadrant A3,743,298812,019
Events in quadrant B6,238,833576,485
Events in quadrant C2,787,098807,314
Events in quadrant D6,776,270548,127

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0310
C0310
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146022
B0218662
C0113642
D0235544

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A50542114.174911%
B5054168933.419074%
C505450.098932%
D5053150829.843657%

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 7087 5055 128 128 1.81% 2.53%
B 7087 5055 1358 1358 19.16% 26.86%
C 7087 5055 1 1 0.01% 0.02%
D 7086 5054 1517 1517 21.41% 30.02%

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 564686 3859.35 659 649 146.1
A 15 237 462784 3162.1 659 649 146.1
A 12 189 87838 596.58 659 649 146.1
B 0 186 3281801 27185.02 574 563 120.7
B 0 229 365863 3026.51 574 563 120.7
B 4 171 237912 1966.43 574 563 120.7
C 15 214 221729 1343.66 648 654 164.5
C 14 254 26288 155.8 648 654 164.5
C 7 220 6740 36.99 648 654 164.5
D 2 16 2658393 16675.72 596 576 159.4
D 1 52 1101101 6904.93 596 576 159.4
D 13 249 622071 3899.39 596 576 159.4

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