ASTROSAT CZTI

Data Quality Report

Orbit 04863

Creation date: 2024-06-27T14:48:10.460346
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_009T02_9000000618_04863cztM0_level2.evt modeM0/AS1G05_009T02_9000000618_04863cztM0_level2_quad_clean.evt
Size (bytes)1,102,403,520147,591,360
Size1.0 GB 140.8 MB
Events in quadrant A6,542,154928,270
Events in quadrant B8,826,005892,832
Events in quadrant C6,224,363902,268
Events in quadrant D10,898,315829,997

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02700
B02700
C02700
D02700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0283354
B0350593
C0275943
D0414623

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A132502081.569811%
B1325010077.600000%
C13250960.724528%
D1325013159.924528%

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 17886 13251 29 29 0.16% 0.22%
B 17886 13252 671 671 3.75% 5.06%
C 17886 13252 9 9 0.05% 0.07%
D 17885 13251 843 843 4.71% 6.36%

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 13 251 211997 649.99 1610 1578 323.7
A 8 15 48631 145.35 1610 1578 323.7
A 0 31 33422 98.37 1610 1578 323.7
B 10 16 1969834 6508.15 1596 1562 302.4
B 4 80 273517 899.23 1596 1562 302.4
B 7 252 159430 522.0 1596 1562 302.4
C 12 4 107313 295.95 1557 1569 357.3
C 9 247 32975 87.9 1557 1569 357.3
C 13 61 12873 31.64 1557 1569 357.3
D 1 31 2692630 7381.66 1499 1455 364.6
D 2 234 540267 1477.92 1499 1455 364.6
D 2 63 515536 1410.08 1499 1455 364.6

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