1 DATE: 2017/10/23   STAR: TYC 0638-00660-1   ASTEROID: Bertha   N°: 154

2 OBSERVER: Name: Fausto Delucchi
            E-mail: fausto.delucchi@bluewin.ch
            Address: Vico Morcote

3 OBSERVING STATION: Nearest city:Lugano
  Station:Carona
  Longitude (DD MM SS.s): 08 56 13
  Latitude  (DD MM SS.s): 45 57 24
  Altitude (m): 620
  Datum (WGS84 preferred):
  Single, OR Double or Multiple station (Specify observer's name):Single

                         +----------------------------+
4 TIMING OF EVENTS:      |                            |
                         |  EVENT REPORTED: POSITIVE  |
                         |                            |
                         +----------------------------+

  Event code
  S: observation Start   I: Interruption start
  D: Disappearance       J: Interruption end
  R: Reappearance        B: Blink   F: Flash
  E: observation End     O: Other (specify)

  Abbreviations
  P.E.: Personal Equation = reaction time (for visual obs)
  Acc.: Accuracy (overall accuracy of the given time)

                                                  Comments
  Event   Time (UT)    P.E.   Acc.
  Code   HH:MM:SS.ss   S.ss   S.ss

    S  - 02:29:15    -      -      :
       -             -      -      :
    D  - 02:29:48.12 - 0.2  -      :
    R  - 02:29:58.43 - 0.2  -      :
       -             -      -      :
    E  - 02:31:00    -      -      :

                          Duration : 10.31 sec

  Was your reaction time applied to the above timings? YES

5 TELESCOPE: Type: Newton     Aperture: 300mm    Magnification: 83x
             Mount: German    Motor drive: Yes

6 TIMING & RECORDING:
  Time source: DCF77 radio-controlled clock
              (synchronized before observation)
  Sensor: eye
  Recording: audio recorder
  Time  insertion: beep on the audio recording
  Event insertion: top on the audio recording

7 OBSERVING CONDITIONS:
  Atmospheric transparency: Good     Wind: Little     Temperature: 12°C
  Star image stability: Good         Minor planet visible: -

8 ADDITIONAL COMMENTS: