ASTROSAT CZTI

Data Quality Report

Orbit 03435

Creation date: 2024-06-27T14:28:58.926037
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_167T01_9000000456_03435cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03435cztM0_level2_quad_clean.evt
Size (bytes)586,333,440111,271,680
Size559.2 MB 106.1 MB
Events in quadrant A3,910,199706,693
Events in quadrant B4,708,104705,019
Events in quadrant C4,781,917706,174
Events in quadrant D3,800,883682,416

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174563
B0195592
C0200232
D0175552

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81931301.586720%
B81932733.332113%
C81933273.991212%
D8193570.695716%

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 8223 8195 8 8 0.10% 0.10%
B 8223 8195 53 53 0.64% 0.65%
C 8223 8195 229 229 2.78% 2.79%
D 8223 8195 15 15 0.18% 0.18%

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 25245 117.26 992 971 207.0
A 0 50 23034 106.58 992 971 207.0
A 14 249 13572 60.87 992 971 207.0
B 15 204 414323 2090.62 1003 980 197.7
B 2 249 339830 1713.84 1003 980 197.7
B 4 81 25089 121.94 1003 980 197.7
C 1 192 853437 3774.42 954 961 225.9
C 14 234 122447 537.89 954 961 225.9
C 8 208 38848 167.75 954 961 225.9
D 2 31 57976 243.4 958 931 234.4
D 13 223 28147 116.13 958 931 234.4
D 9 85 28015 115.56 958 931 234.4

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